List of compatible models includes: 4000 Pro Small Form Factor PC, 4300P SFF G1610 500G 2.0G 27 PC, 4300P SFF G1610 500G 4.0G 28 PC, 4300P SFF G2030 500G 2.0G 30 PC, 4300P SFF G2030 500G 4.0G 8 PC, 4300P SFF i33220 500G 4.0G 39 PC, 4300P SFF i33240 500G 4.0G 25 PC, 4300P SFF i33240 500G 4.0G 30 PC, 4300P SFF i33240 500G 4.0G 39 PC, 4300P SFF i33245 1TB 4.0G 8 PC, 4300P SFF i53470S 500G 4.0G 38 PC, 6300P MT G1620 500G 4.0G 27 PC, 6300P MT G2030 500G 4.0G 39 PC, 6300P MT i33240 500G 4.0G 39 PC, 6300P MT i53470 500G 4.0G 27 PC, 6300P MT i53470 500G 4.0G 39 PC, 6300P MT i53570 1TB 8.0G 8 PC, 6300P MT i73770 1TB 8.0G 39 PC, 6300P MT i73770 500G 4.0G 30 PC, 6300P MT i73770 500G 8.0G 26 PC, Compaq 4000 Pro SFF PC - SRP ALL, Compaq Pro 4300 Base Model Small Form Factor PC, Compaq Pro 4300 Small Form Factor PC, Pro 6300 Microtower PC, PROMO4300P8Si53470S1Thq4X37k ALL