StarTech.com PEX1S552, PCIe, MosChip MCS9901, 4.13" (105 mm), 4.72" (120 mm), 0.787" (20 mm), 1.82 oz (51.5 g) StarTech.com PEX1S552. Host interface: PCIe. Chipset: MosChip MCS9901. Width: 4.13" (105 mm), Depth: 4.72" (120 mm), Height: 0.787" (20 mm). Package width: 1.57" (40 mm), Package depth: 8.27" (210 mm), Package height: 5.71" (145 mm). Data transfer rate: 0.4608 Mbit/s, Connectivity technology: Wired, Compatible operating systems: Windows 2000/XP/2003/Vista/Linux Kernel 2.6.11 & +/MAC 10.4 & +