4 x DB9 male - USB-B female DB9 male with mounting screws LED display Data transfer rate of up to 921.6 Kb/s Compatible with Windows 7, 8, 8.1, 10, Windows Server 2008 R2, 2012, 2012 R2, 2016, 2019, Mac OS 10.9 - 10.15, Linux 2.4.x - 4.11.x only LTSversions Chipset: FTDI - FT4232H Metal housing Includes: 1 x USB-A male - USB-B male 2 m cable, 1 x DIN rail set