For Dell NT1XP OptiPlex 3020 7020 9020 SFF 255w Power Supply L255AS00 HU255ES01
For Dell Part No.:NT1XP / 0NT1XP. OptiPlex 3020, 7020, 9020 (SFF - Small Form Factor chassis). Compatible Systems: Used in Dell computer SFF (Small Form Factor) system. Precision T1700 (SFF - Small Form Factor chassis).