StarTech.com PEXUSB4DP. Host interface: PCIe, Output interface: USB 2.0. Product color: Green, Certification: CE, FCC, REACH, TAA. Chipset: VIA/VLI - VT6212, Data transfer rate (max): 0.48 Gbit/s. Windows operating systems supported: Windows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10..., Mac operating systems supported: Mac OS X 10.10 Yosemite,Mac OS X 10.6 Snow Leopard,Mac OS X 10.7 Lion,Mac OS X 10.8 Mountain..., Server operating systems supported: Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2016,Windows Server.... Width: 3.15" (80 mm), Depth: 3.54" (90 mm), Height: 0.787" (20 mm)
StarTech.com PEX2S5531P. Host interface: PCIe, Output interface: Serial, Expansion card standard: PCIe 1.0a. Product color: Green, Stainless steel. Chipset: ASIX - MCS9901CV-CC, Baud rate: 460.8 Kbit/s, FIFO (First In, First Out): 128 B. Windows operating systems supported: Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise..., Mac operating systems supported: Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS..., Server operating systems supported: Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows.... Width: 4.72" (120 mm), Depth: 4.13" (105 mm), Height: 0.787" (20 mm)