The PEX1S553LP PCI Express Serial Card turns a PCI Express slot into an RS232 (DB9) serial connection.

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/Vista/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 a serial port to virtually any computer (regardless of the case form factor).

This product is a replacement for our PEX1S552LP card.

Backed by a StarTech.

Technical Specifications

Product Dimensions3.15 x 4.13 x 0.79 inches
Item Weight1.55 ounces
Item model numberPEX1S553LP
Customer Reviews4.1 out of 5 stars 63 ratings 4.1 out of 5 stars
Best Sellers Rank#6 in Serial Port Cards
Is Discontinued By ManufacturerNo
Date First AvailableSeptember 4, 2010
DepartmentAccessories general
Country of OriginTaiwan
Hardware InterfacePCI
Item Dimensions LxWxH3.15 x 4.13 x 0.79 inches
Item Weight0.04 Kilograms