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3ft USB to RS232 DB9 Serial Adapter Cable - M/M

Product ID: ICUSB232SM3

Add an RS232 serial port to your laptop or desktop computer through USB

Features
  • Supports serial data transfer rates of up to 1 Mbps

  • No external power needed - draws power from the USB connection

  • Thin,lightweight design

More Features . . .
  • Compatible with modems, printers, bar code scanners, servers, PDUs, and nearly any serial RS232 equipment

  • Easy to setup and install

Prices may be lower from Resellers:

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Available in
$28.99 USD

ID: ICUSB232SM3

In stock: ?
USA: 1263  |  Canada: 160
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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.


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The ICUSB232SM3 3ft USB to Serial Adapter Cable lets you connect DB9 RS232 serial devices to your Mac® or PC laptop or desktop computer through an available USB port, as though the computer offered an onboard DB9M connector.

Unlike typical USB to serial converter cables where the conversion takes place at the DB9 end, the StarTech.com ICUSB232SM3 features a converter chip on the USB end. Converting at the USB source overcomes the 15ft. technical limit of USB cables, allowing for a much greater serial DB-9 extension cable (50ft.+ is possible depending on the application) if necessary.

Simple to install and use, this USB to Serial adapter is a cost-effective solution that bridges the compatibility gap between modern computers and legacy serial peripherals.

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

The StarTech.com Advantage
  • The converter chip on the USB end of the cable allows extension of the DB9 serial over much greater distances than USB extension
  • Drawing power from the USB bus saves the hassle of carrying an external power adapter for this add-on serial port
  • Extensive list of compatible operating systems makes this device perfect for almost any RS232 application
Common Customer Questions

View FAQs...

Compatible With

View full OS compatibility

Windows® CE 4.2, 5.2, 98SE, ME, 2000, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2016
Mac OS® 10.6 to 10.13
Linux 2.4.x to 4.11.x LTS Versions only

Applications
  • Perfect for IT Administrators looking to add legacy functionality to newer notebooks, PCs and servers that lack an integrated RS232 port
  • Connect, monitor and control industrial/automotive sensors and equipment
  • Connect bar code scanners, receipt printers and other point of sale devices
  • Connect a satellite receiver, serial modem, or PDA with serial sync
Product Numbers
Warranty Information
Warranty Lifetime
Hardware
Bus Type USB 2.0
Chipset ID Prolific - PL2303HXD
Industry Standards RS232, USB 1.1/2.0
Interface Serial
Port Style Cable Adapters
Ports 1
Performance
FIFO 192 Bytes
Max Baud Rate 921.6 Kbps
Serial Protocol RS-232
Connector(s)
Connector Type(s) 1 - DB-9 (9 pin, D-Sub) Male
1 - USB Type-A (4 pin) USB 2.0 Male
Software
OS Compatibility Windows® CE 4.2, 5.2, 98SE, ME, 2000, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2016
Mac OS® 10.6 to 10.13
Linux 2.4.x to 4.11.x LTS Versions only
Environmental
Humidity 0~65% RH
Operating Temperature 0°C to 60°C (32°F to 140°F)
Storage Temperature -20°C to 80°C (-4°F to 176°F)
Physical Characteristics
Cable Length 3 ft [0.9 m]
Enclosure Type Plastic
Product Height 0.6 in [15 mm]
Product Length 36 in [914 mm]
Product Weight 1.9 oz [54 g]
Product Width 1.4 in [35 mm]
Packaging Information
Shipping (Package) Weight 0.2 lb [0.1 kg]
What's in the Box
Included in Package 1 - USB to Serial Converter
2 - Cable Nuts
1 Port Professional USB to Serial Adapter Cable with COM Retention
ICUSB2321X

1 Port Professional USB to Serial Adapter Cable with COM Retention

Add one serial RS-232 port with com retention to any laptop or computer with a USB port

$43.99

In stock:   USA: 376  |  Canada: 47

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 Wall Mountable USB to Serial Adapter Hub with COM Retention
ICUSB2322X

2 Port Wall Mountable USB to Serial Adapter Hub with COM Retention

Add 2 serial RS-232 ports to any laptop or computer with a USB port

$62.99

In stock:   USA: 50  |  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.

4 Port USB to RS232 Serial DB9 Adapter Hub
ICUSB2324

4 Port USB to RS232 Serial DB9 Adapter Hub

Add four RS232 serial ports to any notebook or desktop computer using a single USB port

$92.99

In stock:   USA: 452  |  Canada: 24

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.

4 Port Wall Mountable USB to Serial Adapter Hub with COM Retention
ICUSB2324X

4 Port Wall Mountable USB to Serial Adapter Hub with COM Retention

Add 4 serial RS-232 ports to any laptop or computer with a USB port

$109.99

In stock:   USA: 186  |  Canada: 11

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 USB to RS232 Serial DB9 Adapter Hub
ICUSB2328

8 Port USB to RS232 Serial DB9 Adapter Hub

Add eight RS232 serial ports to any notebook or desktop computer using a single USB port

$215.99

In stock:   USA: 66  |  Canada: 10

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 USB to RS232 Serial DB9 Adapter Cable
ICUSB232C2

2 Port USB to RS232 Serial DB9 Adapter Cable

Add 2 serial RS-232 ports to any laptop or computer with a USB port

$46.99

In stock:   USA: 610  |  Canada: 21

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.

USB 2.0 Cables (1)

16 ft USB 2.0 Active Extension Cable - M/F
USB2FAAEXT15

15 ft USB 2.0 Active Extension Cable - M/F

Reliably extend the distance of a USB 2.0 device an additional 15ft

$21.99

In stock:   USA: 859  |  Canada: 422

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 Cables & DB25 Cables (7)

15 ft Straight Through Serial Cable - DB9 M/F
MXT106

15 ft Straight Through Serial Cable - DB9 M/F

Extend the connection between your DB9 serial devices by up to 15ft

$9.99

In stock:   USA: 238  |  Canada: 0
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: 2560  |  Canada: 730

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.

25 ft Straight Through Serial Cable - DB9 M/F

$11.99

In stock:   USA: 664  |  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.

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: 4410  |  Canada: 367

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: 2512  |  Canada: 25

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: 1455  |  Canada: 184

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: 2104  |  Canada: 207

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.

Serial Over IP (Cat5/6) Extenders (1)

Serial DB9 RS232 Extender over Cat 5 - Up to 3300 ft (1000 meters)
RS232EXTC1

Serial DB9 RS232 Extender over Cat 5 - Up to 3300 ft (1000 meters)

Extend an RS232 serial connection up to 1000 meters (3300 feet) using Cat 5 cabling

$128.99

In stock:   USA: 109  |  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.

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