StarTech.com 2 Port Low Profile PCI Express Serial Card – 16550 – Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI Express expansion slot – pci express serial card – pci-e serial card – pci express RS232 – rs232 card – pci serial adapter CARD SERIAL RS232 CARD
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®, and 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 (regard of the case form factor). This product is a replacement for our PEX2S552LP card. Backed by a StarTech.com 2-year warranty and free lifetime technical support. More from the Manufacturer

Startech PEX2S553LP

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

Guides & Documents

Brochure