Startech.com 2-Port PCI Express RS232 Serial Adapter Card 16550 UART PCIe to Dual Serial DB9 Host Controller Windows & L

Add 2 Rs-232 Serial Ports To Your Standard Or Small Form Factor Computer Through A Pci Express Expansion SlotThe 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/Vista/Windows 7/Server 2008 R2 (32 And 64 Bit) Linux Kernel 2.6.11 And Up 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.The Startech.Com Advantage- 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