Introduction

The PEX2S553LP low profile/half-height PCI Express Serial Card turns a PCI Express slot into two RS232 (DB9) serial connections.

The card is constructed using a native single chip design that lets you 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 PCI Express RS232 Serial Adapter Card 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 ships with a low profile/half-height bracket installed but includes an optional full profile bracket that lets you add 2 serial ports to virtually any computer (regardless of the case form factor).

This product is a replacement for our PEX2S552LP card.

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

Benefits

• Native single-Chip, single lane PCI Express; 48% less cpu load, and increased performance
• Pre-configured with half-height mounting bracket for low profile systems, but includes a full profile bracket for versatility
• Easy to install and use with full step-by-step instructions saves time and hassle

Features

• One high speed RS232 serial port with data transfer rate up to 460.8 Kbps
• Ships with half-height/low profile mounting bracket, includes optional standard profile bracket
• Single chip design optimizes speed and reliability
• Native single-chip, single lane PCI Express
• Selectable power output on pin 9 for the serial port
• Compliant with PCI Express base specifications revision 1.1a
• 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
• 128-byte deep FIFO per transmitter and receiver

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: Low Profile (SP 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

Product Length: 105 mm [4.1 in]

Product Width: 80 mm [3.1 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

Microsoft WHQL Certified: Yes

Included in Package: PCI-Express Serial Card

DB9 Ribbon cable

Full Profile Bracket

Low profile bracket

Driver CD

Instruction Manual