Some cookies are essential to ensure our website works for you. You may block or delete all cookies from this site but parts of the site may not work. To find out more about how we use cookies, see our privacy statement.

OK

Browse Products...

4 Port RS232 PCI Express Serial Card w/ Breakout Cable

Product ID: PEX4S553B

Add 4 RS232 serial ports to any PC using a single PCI Express expansion slot

Features
  • Native single chip design

  • Includes a full profile and low profile/half-height bracket

  • On chip 256-byte depth FIFO in transmit/receive path of each port

More Features . . .
  • Single-Lane (x1) PCI-Express with throughput up to 2.5Gbps

  • Supports hardware and software flow control

  • Supports data transfer rates up to 250Kbps on each port

  • Compliant with PCI Express base specifications revision 1.0a

  • Automated out-of-band flow control using CTS/RTS and DSR/DTR

Prices may be lower from Resellers:

CDW ZONES PCM IST PCCON DELL SHIU BANDH NEGGB TIGERU NEGG PRO WALM MACM

Government/Education

CDWG PCCONG GLBUS PCMG
TECHD ASIUS DAN INGM SYNNUS
Available in
$115.99 USD

ID: PEX4S553B

In stock: ?
USA: 0  |  Canada: 4
tooltip

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.


Reseller Pricing: Create an Account

Volume Order? Request a quote

The PEX4S553B 4-Port PCI Express Serial Card (with breakout cable) lets you add 4 RS232 serial ports using a single PCIe expansion slot, with an included 1-to-4 cable enabling you to add 4 serial ports to a single low profile slot.

The serial card features a native single-chip design that provides optimum reliability and speed, reducing the CPU load by up to 48% over conventional bridge-chip serial cards - a cost-effective solution for connecting legacy serial devices to PCIe-enabled computers.

The multi-port serial adapter includes both full profile and low profile/half-height brackets for compatibility with standard and small form factor computers, and is compatible with a broad range of operating systems, including Windows®, Linux, and MAC OS.

This product is a replacement for our PEX4S552B card.

Backed by a StarTech.com lifetime warranty and free lifetime technical support.

The StarTech.com Advantage
  • Lower CPU load of native single-chip, single lane PCI Express design ensures optimal system performance (up to 48% less CPU load)
  • Includes both standard and low profile/half-height brackets, which makes this the perfect card for any application, including small form factor embedded applications
  • Breakout cable design means that only one expansion slot is needed, to add 4 additional serial ports to any system
Common Customer Questions

View FAQs...

Compatible With

View full OS compatibility

Windows® DOS, 95, 98SE, 2000, CE 5.0/6.0, Embedded System 2009, POS Ready 2009, XP Embedded, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.4 to 10.10
Linux 3.5.x to 4.11.x LTS Versions Only

Applications
  • Point-of-Sale (POS credit/debit card readers, receipt printers, bar code scanners, cash registers, scales)
  • Manufacturing (CNC machinery, process control equipment, bar code scanners, serial printers)
  • Connect specialized parallel and serial devices like printers, scanners, ISDN terminal adapters, CD-R/RWs, Zip® drives and memory card readers
  • Environmental Control (lighting, temperature, clocks)
  • Entertainment (video lottery terminals, slot machines, gaming systems)
  • Healthcare (patient monitoring equipment, nurses' stations, modems)
  • Security (UPS control, access key panels, video cameras, card readers, modems)
  • Hospitality/Restaurant (serial printers, bar code scanners, keyboard, mouse, receipt printer, credit/debit card reader)
  • Consumer (modems, PDAs, digital cameras, printers)
  • ISDN Networking
Product Numbers
Warranty Information
Warranty Lifetime
Hardware
Bus Type PCI Express
Card Type Low Profile (SP bracket incl.)
Chipset ID ASIX - MCS9904CV-AA
Interface Serial
Port Style Dongle (Included)
Ports 4
Performance
Data Bits 5, 6, 7, 8
FIFO 256 Bytes
Max Baud Rate 230.4 Kbps
Parity Even, Odd, None, Space and Mark
Serial Protocol RS-232
Connector(s)
Connector Type(s) 1 - PCI Express x1 Male
External Ports 4 - DB-9 (9 pin, D-Sub) Male
Software
Microsoft WHQL Certified Yes
OS Compatibility Windows® DOS, 95, 98SE, 2000, CE 5.0/6.0, Embedded System 2009, POS Ready 2009, XP Embedded, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.4 to 10.10
Linux 3.5.x to 4.11.x LTS Versions Only
Environmental
Humidity 5~85% RH
Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Physical Characteristics
Product Height 2.7 in [68.5 mm]
Product Length 3.2 in [80.5 mm]
Product Weight 1.8 oz [50 g]
Product Width 0.5 in [12 mm]
Packaging Information
Shipping (Package) Weight 0.7 lb [0.3 kg]
What's in the Box
Included in Package 1 - 4 Port PCI-Express Serial Card
1 - Breakout cable
1 - Full profile bracket
1 - Driver CD
1 - Instruction Manual
4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART
PEX4S952

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

Add four RS232 serial ports to any PC using a single PCI Express expansion slot

$120.99

In stock:   USA: 91  |  Canada: 17

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

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

$216.99

In stock:   USA: 176  |  Canada: 8

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

8 Port PCI Express Low Profile Serial Adapter Card
PEX8S950LP

8 Port PCI Express Low Profile Serial Adapter Card

Add 8 RS-232 serial ports to your computer via a single low profile PCI Express slot

$213.99

In stock:   USA: 122  |  Canada: 6

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

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

$52.99

In stock:   USA: 773  |  Canada: 106

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

2 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART
PEX2S553LP

2 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART

Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI Express expansion slot

$51.99

In stock:   USA: 243  |  Canada: 18

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

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

$52.99

In stock:   USA: 2076  |  Canada: 71

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART
PEX2S952LP

2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART

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

$51.99

In stock:   USA: 302  |  Canada: 133

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART
PEX2S5531P

2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART

Add 1 parallel port and 2 RS-232 serial ports to your standard or low-profile computer through a PCI Express expansion slot

$49.99

In stock:   USA: 342  |  Canada: 9

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

2 Port PCI Express RS232 Serial Adapter Card with 16950 UART
PEX2S950

2 Port PCI Express RS232 Serial Adapter Card with 16950 UART

Add 2 RS232 serial ports to your standard or small form factor computer through a PCI Express expansion slot

$62.99

In stock:   USA: 5  |  Canada: 12

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

6 ft DB25 to DB9 Serial Modem Cable - M/F
MC6MF

6 ft DB25 to DB9 Serial Modem Cable - M/F

Connect your computer’s serial port to a modem or switchbox

$8.99

In stock:   USA: 281  |  Canada: 172

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

6ft Straight Through Serial Cable - DB9 M/F
MXT100

6ft Straight Through Serial Cable - DB9 M/F

Extend your EGA monitor cable or mouse cable by 6ft

$7.99

In stock:   USA: 2107  |  Canada: 605

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

6 ft Straight Through Serial Cable - DB9 F/F
MXT100FF

6 ft Straight Through Serial Cable - DB9 F/F

Connect two DB9 equipped serial devices

$7.99

In stock:   USA: 3139  |  Canada: 355

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M
SCNM925FM

10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M

Connect your serial devices, and transfer your files

$7.99

In stock:   USA: 3489  |  Canada: 220

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

10 ft DB9 RS232 Serial Null Modem Cable F/F
SCNM9FF

10 ft DB9 RS232 Serial Null Modem Cable F/F

Transfer files via serial connection

$7.99

In stock:   USA: 2050  |  Canada: 688

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

10 ft DB9 RS232 Serial Null Modem Cable F/M
SCNM9FM

10 ft DB9 RS232 Serial Null Modem Cable F/M

Transfer files via serial connection

$8.99

In stock:   USA: 1105  |  Canada: 153

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

DB9 to DB25 Serial Cable Adapter - F/F
AT925FF

DB9 to DB25 Serial Cable Adapter - F/F

Convert a DB9 male port to a DB25 female port

$7.99

In stock:   USA: 995  |  Canada: 40

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

DB9 to DB25 Serial Cable Adapter - F/M
AT925FM

DB9 to DB25 Serial Cable Adapter - F/M

Convert a DB9 male port to a DB25 male port

$7.99

In stock:   USA: 2096  |  Canada: 27

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

Share your opinions about this product

Thanks for sharing your opinions about the PEX4S553B. When writing your review, please focus on the performance and quality of this product. Your comments will help guide others. If possible, include examples of how you use the product, things you like or things you wish were different about it.

We're here to help

If you need support or you want to comment on parts of your purchase experience aside from the quality or performance of the product such as shipping or any technical/customer support issue, etc., we’d be happy to help you through Live Chat, our support form or by phone.

Reviews

Rating Snapshot

★   1
★   0
★   0
★   0
★   0

Average Customer Ratings

1-1 of 1 Reviews
Sort:  
Rating: 5 /5

Quality of Product
Helpful? Yes · 0 No · 0 - Report Comment

* Product appearance and specifications are subject to change without notice.

* Same day shipping is only available for orders shipping within the United States.

x

Startech.com - 4 Port RS232 PCI Express Serial Card w/ Breakout Cable

My Review

Overall Rating*
Click to rate
It was easy to find this StarTech.com product
YES
NO
My rating for the quality of this product
Click to rate

You may receive emails regarding this submission. Any emails will include the ability to opt-out of future communications.

* denotes a required field