Engineered for use in space-cramped settings, the TL-Rack 100B chassis packs into a 19"(W) x 1.75"(H) x 17.3"(D) package an 80W CE/UL power supply, three drive bays, and a cooling system consisting of three 7-cfm cooling fans and ventilation holes. On the control panel of the 1U, 2-slot 19" rackmount computer chassis are two switches for reset and power on/off, LED indicators for HDD and power, and a 5-pin AT keyboard connector for maintenance or program upgrade. The TL-Rack 100B chassis also can be configured either with a 2-slot backplane for one SBC and one add-on PCI card, or for use with an all-in-one embedded SBC. The chassis is suited for use in rackmount controller, embedded server, Firewall, and rackmount or desktop workstation applications.