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Item#: N82E16839158049

StarTech EC4S952 Serial Ports ExpressCard 4 - DB-9 (9 pin; D-Sub) Male

  • 4 - DB-9 (9 pin; D-Sub) Male
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The EC4S952 4-Port ExpressCard-based Serial Card lets you add four RS232 serial ports to your laptop or ExpressCard equipped desktop computer, using an available ExpressCard slot.

The ExpressCard Serial adapter is designed based on a single-chip architecture (as opposed to cards that use a "bridge chip"), providing native PCI Express communication for greater performance and reliability, as well as reduced power consumption and CPU load reduction of up to 48%.

Compatible with ExpressCard 34mm and ExpressCard 54mm card slots, the 4 Port Serial ExpressCard includes a slot spacer for greater stability while installed in 54mm slots.

  • newegg Add Four Serial Ports Based on single chip design that optimizes speed, reliability and power, the StarTech EC4S952 is a simple and portable way to add four RS232 serial ports to your computer via available ExpressCard slot, ideal for industrial control, automation, and monitoring of serial machines and PCs.
  • newegg ExpressCard 34/54 Compatible Compatible with every style of ExpressCard slot; both 34mm and 54mm sizes. Includes a slot spacer for a perfect fitment in 54mm slots

Learn more about the STARTECH EC4S952




Serial Ports ExpressCard
Other Ports
4 - DB-9 (9 pin; D-Sub) Male
34mm ExpressCard
Operating: 0 degree C to 55 degrees C (32 degrees F to 131 degrees F)
Storage: -20 degrees C to 85 degrees C (-4 degrees F to 185 degrees F)
5~95% RH
0.80" x 1.30" x 4.60" (H x W x L)
Operating Systems Supported
Windows® 8 / 8.1 (32/64bit), 7 (32/64), Vista (32/64), XP (32/64), XP Embedded, CE 6.0/5.0/4.2, 2000
Windows Server® 2012, 2008 R2, 2003


Port Style: Dongle (Included)

Max Baud Rate: 921.6 Kbps

Parity: None, Odd, Even, Space, and Mark

Compatible with ExpressCard 34mm and 54mm form factors (with included adapter)

128-byte deep transmit/receive FIFOs

Automated in & out-of-band flow control

Fully compliant with Express Card 1.1 Specifications

Single chip design optimizes speed, reliability and power

Supports ASPM (L0S, L1) Link power management

ExpressCard Advanced Error Reporting, ECRC Support

4 16C950 High performance UART channels

9-bit Data Framing, 5,6,7 and 8 bits also supported


Package Contents
4 port ExpressCard RS232 Adapter
34 to 54 mm slot spacer
Driver CD
Instruction Manual

Quick Info


  • Limited Warranty period (parts): Lifetime
  • Limited Warranty period (labor): Lifetime

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Home > 
Computers & Tablets > 
All Laptop Accessories > 
Laptop Add-on Cards > 
Item#: N82E16839158049
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