Startech PEX4S553B User Manual
4 Port RS232 PCI Express Serial Card w/ Breakout Cable
StarTech ID: PEX4S553B
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.
www.startech.com
1 800 265 1844
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, CDR/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
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
Single-Lane (x1) PCI-Express with throughput up to 2.5Gbps
Supports hardware and software flow control
Supports re-map function for legacy ports (Supported OS's only)
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
www.startech.com
1 800 265 1844
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