StarTech.com PCI2S1P2. Host interface: PCI/PCI-X, Output interface: Serial, Expansion card form factor: Full-height / Low-profile. Product color: Black. Chipset: Asix - MCS9865, Data transfer rate (max): 0.0015 Gbit/s, Baud rate: 115.2 Kbit/s. Windows operating systems supported: Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10..., Server operating systems supported: Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows.... Width: 0.85" (21.6 mm), Depth: 5.28" (134 mm), Height: 4.72" (120 mm)
StarTech.com ST4300U3C3. Host interface: USB 3.2 Gen 1 (3.1 Gen 1) Type-B, Hub interfaces: USB 2.0, USB 3.2 Gen 1 (3.1 Gen 1) Type-A. Data transfer rate: 5000 Mbit/s, Product color: Black, Housing material: Aluminum. Power supply type: DC, Input voltage: 100 - 240 V, Input current: 1.3 A. Mac operating systems supported: Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain.... Width: 1.77" (45 mm), Depth: 4.33" (110 mm), Height: 0.945" (24 mm)