Fanuc A20B-8001-0290 HSSB interface module. This Fanuc HSSB interface slots into the A16B-1212-0871 power supply units. This card allows for high speed serial bus link on the I/O link type of systems. The B1 type PSU’s power a variety of Fanuc 16, 18 control systems with 2, 3, 4 slots populated. A20B-8001-0290 graphic card is available today, either as exchange or on an outright basis stock dependent with full testing and repair services are available also. DNC offer repair or exchange warranties on this PCB of 180 day.