StarTech.com 4 Port USB to RS232 Serial DB9 Adapter Hub. Host interface: USB, Hub interfaces: Serial. Product colour: Silver, Housing material: Plastic, Certification: CE, FCC, RoHS. Power consumption (typical): 1 W, Power consumption (max): 1.5 W. 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 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.6 Snow..., Other operating systems supported: Windows XP Embedded. Width: 66.5 mm, Depth: 150 mm, Height: 26 mm
