Introduction

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.

Benefits

• 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

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 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

Specification

Connector Type(s): PCI Express x1 Male

External Ports: DB-9 (9 pin, D-Sub) Male

Operating Temperature: 0°C to 70°C (32°F to 158°F)

Storage Temperature: -40°C to 85°C (-40°F to 185°F)

Humidity: 5~85% RH

Ports: 4

Interface: Serial

Bus Type: PCI Express

Card Type: Low Profile (SP bracket incl.)

Port Style: Dongle (Included)

Chipset ID: ASIX - MCS9904CV-AA

Shipping (Package) Weight: 0.3 kg [0.7 lb]

Serial Protocol: RS-232

Max Baud Rate: 230.4 Kbps

Data Bits: 5, 6, 7, 8

FIFO: 256 Bytes

Parity: Even, Odd, None, Space and Mark

Product Length: 80.5 mm [3.2 in]

Product Width: 12 mm [0.5 in]

Product Height: 68.5 mm [2.7 in]

Product Weight: 50 g [1.8 oz]

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

Microsoft WHQL Certified: Yes

Included in Package: 4 Port PCI-Express Serial Card

Breakout cable

Full profile bracket

Driver CD

Instruction Manual