Startech PEX4S553 User Manual

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

StarTech ID: PEX4S553

The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232
(DB9) serial ports, using a single PCI Express expansion slot.

Based on a native single-chip design, this 4-port serial adapter card allows you to harness the full capability
offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over
conventional bridge-chip serial cards.

The RS232 Serial Adapter Card includes 4 half-height/low-profile brackets, allowing the card to be installed into
almost any PC case, regardless of form factor.

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

Applications

POS retail applications in grocery stores, and any other retail store to control keyboards, cash drawers,
receipt printers, card readers / card swipes, scales, and elevated displays on poles
Bank teller workstations in either full profile or low profile versions to control their serial devices such as
cash drawers, card readers / card swipes, printers, keypads / pinpads, pen pads
Self-service automated machines and kiosks to control serial devices such as scales, touchscreens,
magnetic card readers, bar code scanners, receipt printers, label printers
Standard ATM automated teller machines to control keypads, receipt printer, card readers / card swipes,
touchscreen LCD's, camera control, etc.
Used to control multiple surveillance / security cameras in a parking structure, office building, etc.

www.startech.com

1 800 265 1844

Features

Four high speed RS232 serial ports, with support for data transfer rates up to 128000bps
256-byte deep FIFO per transmitter and receiver
Native single-Chip, single lane PCI Express
Includes half-height/low profile mounting brackets
Built-in 16C450/550 compatible UART
Compliant with PCI Express Base Specification 1.1

www.startech.com

1 800 265 1844