EXSYS USB to 8S Serial RS-232 ports. Host interface: USB, Output interface: USB 1.1/2.0 - Serial. Data transfer rate: 0.1 Mbit/s. Width: 150 mm, Depth: 70 mm, Height: 40 mm. Certification: CE, FC, ROHS, WHQL. Operating temperature range (T-T): 0 - 55 °C, Operating relative humidity range: 5 - 95 %