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

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.

• 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

Hardware:
• Bus Type: PCI Express
• Card Type: Standard Profile (LP bracket incl.)
• Chipset ID: ASIX - MCS9904CV-AA
• Interface: Serial
• Port Style: Integrated on Card
• Ports: 4

Performance:
• Data Bits: 5, 6, 7, 8
• FIFO: 256 bytes
• Max Baud Rate: 128 Kbps
• MTBF: 26,280 Hours
• Parity: 5, 6, 7, 8
• Serial Protocol: RS-232

Connector(s):
• Connector Type(s): 1 - PCI Express x1 Male
• External Ports: 4 - DB-9 (9 pin, D-Sub) Male

Environmental:
• Humidity: 5~85% RH
• Operating Temperature: 0°C to 50°C (32°F to 122°F)
• Storage Temperature: -20°C to 60°C (4°F to 140°F)

Physical Characteristics:
• Color: Green

• Microsoft WHQL Certified: Yes
• 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, • Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016, 2019, Mac OS 10.4 to 10.10, Linux 3.5.x to 4.11.x LTS Versions Only

• 1x 4 Port PCI-Express RS-232 Serial Card
• 1x Bracket with 2 DB9 male ports
• 4x Low Profile Brackets
• 1x Driver CD
• 1x Instruction Manual