Thunderbolt 3 PCIe Expansion Chassis with DisplayPort - PCIe x16

Add an external PCIe (PCI Express 3.0) x16 slot and a DisplayPort connection to your Thunderbolt 3 equipped MacBook or laptop

Product ID: TB31PCIEX16

0 stars (0 reviews) |
  • TAA Compliant
  • Increased productivity with Thunderbolt 3 and up to 40Gbps bandwidth — twice the speed of Thunderbolt 2 (20Gbps) and eight times faster than USB 3.0 (5Gbps)
  • Supports one 4K DisplayPort monitor, and a second extended monitor display through the Thunderbolt 3 (USB-C) port
Your price
$317.99USD

In stock: US: 19 | CA: 25

Where to buy StarTech.com products
Where to buy

This Thunderbolt™3 PCIe expansion chassis lets you add a PCI Express card to your laptop or desktop computer, through an external Thunderbolt 3 connection. The chassis also features a DisplayPort video output, so you can connect an additional monitor to your laptop, and supports Thunderbolt 3 daisy chaining, so you can expand your workstation even further.

Expand the capabilities of your Thunderbolt 3 computer

The Thunderbolt 3 PCIe chassis makes it easy to expand your system with the capabilities you need to work at peak productivity. You can add many types of PCI Express cards, such as a PCIe USB 3.1/3.0/2.0 and USB-C, SSD, network, eSATA, FireWire or video capture cards. And, with the speed and bandwidth support of Thunderbolt 3 and PCIe 3.0, you can enjoy many of the same port additions you would from the PCI Express expansion slots of a desktop system.

Extend your workstation

The external PCIe enclosure features a dedicated DisplayPort output that lets you add an additional display to your laptop or desktop computer. The enclosure features a second Thunderbolt 3 (USB-C) port, that you can use to connect a secondary display (a USB-C video adapter may be required). With multiple extended displays, you can work more efficiently by multitasking faster, and avoid the hassle of continually repositioning several open windows or programs.

You can also use the second Thunderbolt 3 port to connect additional Thunderbolt, USB and DisplayPort devices to your system. You can daisy chain up to six Thunderbolt 3 devices and expand your workstation to suit your specific requirements.

Increase productivity with faster speeds

Thunderbolt 3 is the fastest connection available, which means you don’t have to deal with the performance bottlenecks of a slower connection, and can accomplish more in the same amount of time.

At up to 40Gbps this Thunderbolt 3 expansion chassis gives you the throughput to add displays to your laptop, access files quickly, and work without disruptions. It’s easy to access and edit large uncompressed files such as videos and images on the fly, making it ideal for dynamic on-site production.

The TB31PCIEX16 is backed by a StarTech.com 2-year warranty and free lifetime technical support.

Applications

  • Add many types of PCIe cards, such as a PCIe USB 3.1/3.0/2.0 and USB-C, SSD, network, eSATA, FireWire or video capture cards to your Thunderbolt 3 laptop
  • Add an external PCIe card to your Thunderbolt 3 equipped desktop computer

Partner Numbers

  • Tech Data 12918243
  • ASI 207005
  • D&H TB31PCIEX16
  • Ingram Micro USA 2FN256
  • SYNNEX US STA-TB31PCIEX16
  • UPC 065030868440

Compatibility

  • macOS Sierra (10.12) logo
  • Windows 7 logo
  • Windows 8 logo
  • macOS Mojave (10.14) logo
  • Windows 10 logo
  • macOS High Sierra (10.13) logo
  • macOS Catalina (10.15) logo
  • macOS Big Sur (11.0) logo
Windows® 7, 8, 8.1, 10
macOS 10.12 - 10.15, 11.0

Specifications

Warranty Information Warranty 2 Years
Connector(s) 1 - Internal Ports PCI Express x16
2 - External Ports Thunderbolt™ 3 USB-C (24-pin) (40Gbps)
1 - External Ports DisplayPort (20 pin)
Environmental Operating Temperature 5°C to 35°C (41°F to 95°F)
Storage Temperature -20°C to 50°C (-4°F to 122°F)
Humidity 20-80%RH
Hardware Fan(s) Yes
1 - Fans 60 mm
Ports 3
Air Flow Rate 14.06 CFM
Noise Level 24.55 dB
Interface Thunderbolt
Bus Type Thunderbolt 3
Card Type Standard Profile
Industry Standards Thunderbolt 3
Fan Bearing Type Sleeve Bearing
Chipset ID Intel - Alpine Ridge DSL6540
Indicators 1 - LED Indicators Power(Blue)
Packaging Information Shipping (Package) Weight 6.9 lb [3.1 kg]
Package Length 14.2 in [36 cm]
Package Width 11.4 in [29 cm]
Package Height 5.7 in [14.5 cm]
Performance Maximum Data Transfer Rate 40 Gbps (Thunderbolt 3)
Bandwidth 3.94 GB/s (x4 PCIe 3.0 )
Type and Rate Thunderbolt 3 - 40 Gbit/s
Physical Characteristics Color Black
Material Aluminum and Steel
Cable Length 19.7 in [50 cm]
Product Length 11.0 in [28 cm]
Product Width 5.6 in [14.2 cm]
Product Height 3.2 in [82 mm]
Weight of Product 3.6 lb [1.6 kg]
Power Power Source AC Adapter Included
Input Voltage 100 - 240 AC
Input Current 2A
Output Voltage 12V DC
Output Current 5.417A
Center Tip Polarity Positive
Plug Type N
Power Consumption (In Watts) 65
Software OS Compatibility Windows® 7, 8, 8.1, 10
macOS 10.12 - 10.15, 11.0
Special Notes / Requirements Note The expansion chassis does not support video cards.
This expansion chassis does not provide full power delivery but will provide 15W of power, resulting in a slow charge to some laptops, such as MacBook Pro. When the dock is connected to your host laptop, a charging icon may appear on your laptop's screen. This is only sufficient enough to charge your laptop in sleep state, and charging will require an extended time period.
5K support can only be achieved using a Thunderbolt 3 5K monitor. DisplayPort 5K monitors will not work with this expansion chassis.
System and Cable Requirements Thunderbolt 3 equipped computer with a Thunderbolt 3 port.
Note A 4K-capable display is required to achieve 4K x 2K resolution (4K is also known as 4K x 2K).
Certain monitors may be limited to 4K at 30Hz when connecting through DisplayPort. These monitors include the following models: Dell P2715Q, Viewsonic VX2475Smhl-4K, Philips 288P6LJEB, LG 31MU97C-B, Asus PB287Q (these models will need to be set to 4K at 30Hz).
When connecting a display to one of the Thunderbolt 3 USB-C ports, a USB-C video adapter might be required depending on the input of your display.
Secondary Thunderbolt 3 port can also be used to connect USB 3.1 (10Gbps) USB-Type C devices, such as USB 3.1 Hubs. Backwards compatible with USB 3.0 (USB 3.1 Gen 1), and USB 2.0.
What's in the Box 1 - Included in Package Thunderbolt 3 PCIe expansion box
Thunderbolt 3 cable
4 - Included in Package rubber feet
1 - Included in Package universal power adapter (NA/JP, UK, EU, ANZ)
quick-start guide

Accessories

PEXUSB3S42

4-Port PCI Express USB 3.0 Card

Add four USB 3.0 ports – three external ports and one internal port – to your computer

Your price
$45.99USD

In stock: US: 0 | CA: 9

Where to buy StarTech.com products
PEXUSB312EIC

5-Port USB 3.1 PCIe Card - 1x USB-C (10Gbps), 2x USB-A (5Gbps) + 1x 2-Port IDC (5Gbps)

Add an external USB Type-C and two external USB Type-A ports to your computer, plus an IDC header port that can provide two internal USB 3.0 ports

Your price
$71.99USD

In stock: US: 609 | CA: 15

Where to buy StarTech.com products
PEXUSB314A2V

4-Port USB 3.1 (10Gbps) Card - 4x USB-A with Two Dedicated Channels - PCIe

Add four USB Type-A ports with two independent 10Gbps channels to your computer, through a PCI Express slot

Your price
$157.99USD

Check reseller availability

Where to buy StarTech.com products
PEX1394B3

3 Port 2b 1a 1394 PCI Express FireWire Card Adapter

Add 2 native FireWire 800 ports to your computer through a PCI Express expansion slot

Your price
$82.99USD

In stock: US: 320 | CA: 67

Where to buy StarTech.com products
Discontinued
PEX2S952

2 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

Add 2 RS-232 serial ports to your full height or low profile computer through a PCI Express slot

Your price
$52.99USD

In stock: US: 0 | CA: 1

Where to buy StarTech.com products
PEX2S553

2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART

Add 2 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot

Your price
$55.99USD

In stock: US: 26 | CA: 11

Where to buy StarTech.com products
Discontinued
PEX8S952

8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

Add 8 RS232 serial ports to your computer via a single PCI Express slot

Your price
$216.99USD

Check reseller availability

Where to buy StarTech.com products
PEX4S232485

4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485

Add two RS232, and two RS422/485 serial ports to your PC through a PCI-Express expansion slot

Your price
$156.99USD

In stock: US: 201 | CA: 1

Where to buy StarTech.com products
PEXESAT32

2 Port SATA 6 Gbps PCI Express eSATA Controller Card

Add Two eSATA 3.0 (6Gbps) Ports for High Speed Access to Large External Storage Solutions

Your price
$44.99USD

In stock: US: 387 | CA: 104

Where to buy StarTech.com products
PEXM2SAT3422

2x M.2 NGFF SSD RAID Controller Card plus 2x SATA III Ports - PCIe

Add two Next Generation Form Factor M.2 SSDs and two SATA ports to your computer through PCI Express

Your price
$100.99USD

In stock: US: 203 | CA: 11

Where to buy StarTech.com products
PEX2M2

2x M.2 SATA SSD Controller Card - PCIe

Add two Next Generation Form Factor (NGFF) M.2 SATA SSDs to your computer through PCI Express

Your price
$85.99USD

In stock: US: 33 | CA: 11

Where to buy StarTech.com products
Discontinued
PEXUSB311A1C

2-Port USB 3.1 (10Gbps) Card - 1x USB-C, 1x USB-A - PCIe

Upgrade your computer to the 10Gbps speed of USB 3.1 Gen 2, by adding both USB Type-C and USB Type-A ports

Your price
$40.90USD

Check reseller availability

Where to buy StarTech.com products
PEXSOUND7CH

7.1 Channel Sound Card - PCI Express, 24-bit, 192KHz

Add digital optical surround sound to your computer through PCIe

Your price
$76.99USD

In stock: US: 109 | CA: 2

Where to buy StarTech.com products
ST20000SPEXI

2-Port PCI Express 10GBase-T Ethernet Network Card - with Intel X540 Chip

Add two 10 Gigabit Ethernet ports (10Gbps) to a client, server or workstation through one PCI Express slot

Your price
$361.99USD

In stock: US: 0 | CA: 15

Where to buy StarTech.com products
ST10000SPEXI

1-Port 10G Ethernet Network Card - PCI Express - Intel X550-AT Chip

Upgrade your server or workstation to 10G networking over copper, by adding a 10GBase-T / NBASE-T RJ45 port

Your price
$312.99USD

In stock: US: 154 | CA: 43

Where to buy StarTech.com products
Discontinued
ST10000SPEX

1 Port PCI Express 10 Gigabit Ethernet Network Card - PCIe x4 10Gb NIC

Add a 10 Gigabit Ethernet port (10 Gbps) to a client, server or workstation through a PCI Express slot

Your price
$295.99USD

Check reseller availability

Where to buy StarTech.com products
PEX10000SRI

1-Port 10G SFP+ Fiber Optic Network Card - PCIe - Intel Chip - MM

Get high performance connectivity over multi-mode fiber, by upgrading your server or workstation with a 10GBase-SR port

Your price
$397.99USD

In stock: US: 97 | CA: 12

Where to buy StarTech.com products
PEX10000SFP

PCI Express 10 Gigabit Ethernet Fiber Network Card w/ Open SFP+ - PCIe x4 10Gb NIC SFP+ Adapter

Scale your network performance using the 10Gb SFP+ transceiver of your choice and connect your PCIe-enabled server to a 10 Gigabit fiber network

Your price
$245.99USD

In stock: US: 108 | CA: 17

Where to buy StarTech.com products
PEX20000SFPI

2-Port 10G Fiber Network Card with Open SFP+ - PCIe, Intel Chip

Add two 10 Gigabit Fiber Ethernet ports (10 Gbps per port) to your server or workstation - using the SFP+ transceiver of your choice

Your price
$340.99USD

In stock: US: 0 | CA: 7

Where to buy StarTech.com products
ST4000SPEXI

4-Port Gigabit Ethernet Network Card - PCI Express, Intel I350 NIC

Add four Gigabit Ethernet ports to a client, server or workstation through a single PCI Express slot

Your price
$352.99USD

In stock: US: 55 | CA: 0

Where to buy StarTech.com products
Discontinued
PEXHDCAP60L

High-definition PCIe Capture Card - HDMI VGA DVI & Component - 1080P at 60 FPS

Capture a 1080p HDMI, DVI, VGA or Component Audio-Video source at 60 frames per second, through a low-profile or full-profile PCI Express slot

Your price
$317.99USD

Check reseller availability

Where to buy StarTech.com products
PEXHDCAP2

High-Definition PCIe Capture Card - HDMI VGA DVI & Component - 1080P

Capture an HD audio-video source, through a low-profile or full-profile PCI Express slot

Your price
$184.99USD

In stock: US: 302 | CA: 51

Where to buy StarTech.com products
CDP2HD

USB-C to HDMI Adapter with 4K 30Hz - Black

USB Type-C™ to HDMI Converter | Thunderbolt™ 3 Compatible | DP Alt Mode

Your price
$34.99USD

In stock: US: 12894 | CA: 1066

Where to buy StarTech.com products
CDP2VGA

USB-C to VGA Adapter

Connect your MacBook, Chromebook or laptop with USB Type-C to a VGA monitor or projector

Your price
$43.99USD

In stock: US: 864 | CA: 0

Where to buy StarTech.com products
CDP2DVI

USB-C to DVI Adapter

Connect your MacBook, Chromebook™ or laptop with USB-C to a DVI monitor or projector

Your price
$39.99USD

Check reseller availability

Where to buy StarTech.com products
Your price
$34.99USD

In stock: US: 22574 | CA: 1708

Where to buy StarTech.com products
Your price
$97.99USD

Check reseller availability

Where to buy StarTech.com products
PEX1TO162

PCI Express X1 to X16 Low Profile Slot Extension Adapter

Connect a low profile x16 PCI Express Card to an x1 slot

Your price
$35.99USD

In stock: US: 31 | CA: 39

Where to buy StarTech.com products
PEX4M2E1

x4 PCI Express 3.0 to M.2 PCIe NVMe SSD Adapter

Connect a PCIe M.2 SSD (NVMe or AHCI) to your computer through PCI Express for ultra-fast data access

Your price
$34.99USD

In stock: US: 906 | CA: 130

Where to buy StarTech.com products
PEX4SFF8639

U.2 to PCIe Adapter for 2.5" U.2 NVMe SSD - SFF-8639 - x4 PCI Express 3.0

Mount a 2.5" U.2 NVMe SSD into your desktop computer or server, using an available PCIe expansion slot

Your price
$50.99USD

In stock: US: 669 | CA: 48

Where to buy StarTech.com products

Drivers/Downloads

Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)

Diagram(s):

Datasheet

Product Support

Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)

Frequently Asked Questions

Troubleshooting

If your computer is not detecting your Thunderbolt™ 3 device, try the following:

  • Update the Thunderbolt software on your Thunderbolt 3 host device.
  • Update the Thunderbolt controller NVM firmware on your Thunderbolt 3 host device.
  • Update the Thunderbolt controller drivers.
  • Update your motherboard BIOS or UEFI.

For more information about how to update the software, firmware, drivers, and BIOS or UEFI, refer to the website of the manufacturer of the Thunderbolt 3 host device. The following website includes links to some of the manufacturers of Thunderbolt 3 host devices: https://thunderbolttechnology.net/updates. If the manufacturer of your host device is not listed, you should contact the manufacturer or refer to their website for more information.

For more information about how to check which version of the Thunderbolt software and firmware you are currently using, see the following FAQ: https://www.startech.com/faq/thunderbolt-3-check-software-firmware.

For more information about Thunderbolt 3 host system and motherboard compatibility, refer to the Thunderbolt 3 Compatibility and Troubleshooting guide.

When you connect a Thunderbolt™ device to any Windows operating system that can support Thunderbolt 3, a pop-up message appears. To use your Thunderbolt 3 device do one of the following:

  • Select Connect Only Once.
  • Select Always Connect.

Caution! If you select Do Not Connect, only video will pass through on your Thunderbolt 3 device.

If you accidentally set a Thunderbolt™3 device to not connect to your computer when prompted by the system, you can force the software to prompt you again for authentication. To do so, complete the following:

  1. Right-click the Thunderbolt icon.
  2. Click Approve Attached Devices.
  3. Select the Thunderbolt 3 port that you want to authenticate.

If you receive an error message that your Thunderbolt device is not certified for PC use, try the following to resolve the issue:

  1. Click Start.
  2. Type Thunderbolt and click the search result.
  3. In the system tray, right-click the Thunderbolt icon.
  4. Click Settings.
  5. Clear the Only allow Thunderbolt Devices that have been certified for PC check box.

To use a Thunderbolt 3 adapter to output to a display at 60Hz, your monitor must support the refresh rate and you need to set the monitor to work at 60Hz. By default, most monitors are set to DP1.1, which will not work with this Thunderbolt 3 device when you use a display at 60Hz. In most cases, you need to set your monitor's DisplayPort settings to DP1.2.

To resolve this issue, use the buttons on your monitor to change the DisplayPort settings to DP1.2. For more information about changing your monitor settings, refer to the website of the manufacturer of your monitor.

To output 4K to a DisplayPort display at 30Hz, your monitor must support the resolution and refresh rate. If your monitor also supports 4K at 60Hz (DP 1.2 or higher), you may also need to set the monitor to work at 30Hz. 

To resolve this issue, use the buttons on your monitor to change the DisplayPort settings to DP1.1. For more information about how to change your monitor settings, refer to the website of the manufacturer of your monitor.

How To

To check which version of the Thunderbolt™ software, NVM firmware, and drivers you are running, do the following:

  1. Click Start.
  2. Type Thunderbolt and click on the search result.
  3. In the system tray, right-click the Thunderbolt icon.
  4. Click Settings > Details.

Review the versions of the software package, NVM firmware, PD firmware, and drivers.  If you are not running the latest versions, navigate to the manufacturer’s website and download the latest versions. 

When you connect a Thunderbolt™ device to any Windows operating system that can support Thunderbolt 3, a pop-up message appears. To use your device, complete the following:

  1. In the New Thunderbolt devices have been attached pop-up message, click OK.
  2. In the User Account Control pop-up message, click Yes.
  3. In the Approve Thunderbolt Devices pop-up message, do one of the following:
    • If you want to authorize your Thunderbolt devices every time that you connect them, select Connect Only Once in the drop-down list.
    • If you want to authorize your Thunderbolt devices only once, select Always Connect in the drop-down list.
  4. Click OK.

If you accidentally set your Thunderbolt device to Do Not Connect in step three above, refer to the following FAQ: https://www.startech.com/faq/thunderbolt-3-denied-authentication.

If you accidentally set a Thunderbolt™3 device to not connect to your computer when prompted by the system, you can force the software to prompt you again for authentication. To do so, complete the following:

  1. Right-click the Thunderbolt icon.
  2. Click Approve Attached Devices.
  3. Select the Thunderbolt 3 port that you want to authenticate.

You can use the Thunderbolt™ software to manage your Thunderbolt 3 devices on a computer running a version of Windows. To manage your Thunderbolt 3 devices, complete the following:

  1. Click Start.
  2. Type Thunderbolt and click on the search result.
  3. Right-click the Thunderbolt icon.
  4. Click Manage Approved Devices.

Before You Buy

Thunderbolt 3 uses the USB-C connector, but not all host connections, cables, and devices with a USB-C connector support Thunderbolt 3. This means that a USB-C device is compatible with a Thunderbolt 3 host connection, but a Thunderbolt 3 device is not compatible with a USB-C host connection. Therefore, it is essential to know whether you have a USB-C or a Thunderbolt 3 host, cable, or device.  

To determine if your component is a Thunderbolt 3 device, look for the Thunderbolt 3 symbol. USB-C devices do not include this symbol.  For more information about USB-C, see the following FAQ: http://www.startech.com/faq/usb-c-port-capabilites

Components

Thunderbolt™ 3 is the latest version of the Thunderbolt standard for connecting computers and electronic devices. It is capable of the following:

  • Total bandwidth up to 40Gbps. Data transfer speeds are dependent on the other features that you are using in your setup.
  • USB 3.1 Gen 2 support.
  • 4K 60Hz video on one or two separate displays.
  • 5K 60Hz video on a single display.
  • A 10 GbE network connection between two Thunderbolt 3 compatible computers.
  • Up to six devices daisy-chained from a single Thunderbolt 3 port.
  • Alternate modes, such as DisplayPort Alternate Mode (DP Alt Mode).
  • Bi-directional power delivery up to 100W (not all Thunderbolt 3 devices support power delivery).

USB-C and Thunderbolt 3

Thunderbolt 3 uses the USB-C connector, but not all host connections, cables, and devices with a USB-C connector support Thunderbolt 3. This means that a USB-C device is compatible with a Thunderbolt 3 host connection, but a Thunderbolt 3 device is not compatible with a USB-C host connection. Therefore, it is important to know whether you have a USB-C or a Thunderbolt 3 host, cable, or device.

To determine if your component is a Thunderbolt 3 device, look for the Thunderbolt 3 symbol (shown below). USB-C devices do not include this symbol.  For more information about USB-C, see the following FAQ: https://www.startech.com/faq/usb-c-port-capabilites.

Thunderbolt symbol: https://sgcdn.startech.com/005329/media/products/gallery_large/TBLT3MMXM.B.jpg.

Backwards compatibility

If you use an adapter, Thunderbolt 3 host connections are compatible with Thunderbolt 1 and Thunderbolt 2 devices. You can use the StarTech.com TBT3TBTADAP to make a Thunderbolt 3 host connections backwards compatible.

Thunderbolt 3 devices are not backwards compatible with Thunderbolt 1 and Thunderbolt 2 host connections.

Thunderbolt 3 uses the USB-C connector, but not all host connections, cables, and devices with a USB-C connector support Thunderbolt 3. This means that a USB-C device is compatible with a Thunderbolt 3 host connection, but a Thunderbolt 3 device is not compatible with a USB-C host connection. Therefore, it is important to know whether you have a USB-C or a Thunderbolt 3 host, cable, or device.

To determine if your component is a Thunderbolt 3 device, look for the Thunderbolt 3 symbol (shown below). USB-C devices do not include this symbol.  For more information about USB-C, see the following FAQ: http://www.startech.com/faq/usb-c-port-capabilites.

Thunderbolt symbol: https://sgcdn.startech.com/005329/media/products/gallery_large/TBLT3MMXM.B.jpg.

Compliance and safety

Compliance letters

  • RoHS
    • Language: English
  • WEEE
    • Language: English

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

(0 reviews)
0 out of 5 stars
  • 5 (0)
  • 4 (0)
  • 3 (0)
  • 2 (0)
  • 1 (0)
Tell us what you think of this product.
Need a little help getting started?

Check out our review guidelines.

Feedback Back to top