The 1U Rack-Mount Kit can accommodate one BLU-BIB device, one BLU-BOB1 device, two BLU-BIB devices, two BLU-BOB1 devices, or one of each device. With each device offering eight channels of analog I/O expansion, the 1U Rack-Mount Kit allows for higher I/O density (16 channels) in a single rack space.