Introduction

The PEX2S553 PCI Express serial card lets you turn a PCI Express slot into 2 RS232 (DB9) serial ports. Based on a native single chip design (no bridge chip), this 2-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe), and reducing the load applied to the CPU by as much as 48% over conventional serial cards.

The RS232 Serial Adapter Card (PEX2S553) is compatible with a broad range of operating systems including Windows 2000/XP/2003/VistaT/Windows 7/Server 2008 R2 (32 and 64 bit), Linux Kernel 2.6.11 to 4.11.x, and MAC OS 10.4 and above.

Plus, the serial card includes an optional half-height/low profile bracket that allows the card to be installed in any PCI Express slot, regardless of the size of the computer case.

This product is a replacement for our PEX2S552 card.

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

Benefits

• Native single-chip, single lane PCI Express chipset delivers true PCIe performance
• Standard and low profile/half-height bracket included to ensure fitment in any system
• Easy to install and use with full step-by-step instructions saving time and hassle

Features

• Two high speed RS232 serial ports with support for data transfer rates up to 460.8 Kbps
• Compliant with PCI Express base specifications revision 1.0a
• Includes half-height/low profile mounting bracket
• Selectable power output on pin 9 for the serial port
• 128-byte deep FIFO per transmitter and receiver
• Native single-Chip, single lane PCI Express
• Automated out-of-band flow control using CTS/RTS and DSR/DTR
• Automated in-band software flow control using programmable Xon/Xoff in both directions

Specification

Connector Type(s): PCI Express x1 Male

Internal Ports: LP4 (4 pin, Molex Large Drive Power) Male

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

Operating Temperature: -10°C to 80°C (14°F to 176°F)

Storage Temperature: -20°C to 100°C (-4°F to 212°F)

Humidity: 5~85% RH

Ports: 2

Interface: Serial

Bus Type: PCI Express

Card Type: Standard Profile (LP bracket incl.)

Port Style: Integrated on Card

Chipset ID: ASIX - MCS9922CV-AA

Shipping (Package) Weight: 0.2 kg [0.4 lb]

Serial Protocol: RS-232

Max Baud Rate: 460.8 Kbps

FIFO: 128 Bytes

Color: Green

Product Length: 105 mm [4.1 in]

Product Width: 120 mm [4.7 in]

Product Height: 20 mm [0.8 in]

Product Weight: 63.5 g [2.2 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

Note: Selectable power output on pin 9 of the serial port

Included in Package: 2 Port PCI-Express Serial Card

Low Profile Brackets

Driver CD

Instruction Manual