The HP C6426-80020-A Duplex Interconnect Board C6426-80020-A is in in stock at Calhoun Technologies. For over 10 years Calhoun Technologies has been saving companies likes your up to 80% off list price on hard to find computer hardware. Manufacturer: HP Part Number: C6426-80020-A Details: HP C6426-80020-A Duplex Interconnect Board C6426-80020-A