4GB Total. 2 Pieces of  2GB 256M X 64 Non-ECC 800MHz 240-pin Unbuffered DIMM (DDR2, 1.8V, CL5, Gold Leads) .

Third Party Equivalent to HP Part Numbers: 457624-001; 5189-2180; AH060AA; AH060AT; KC923-69001; NQ605AT (2x2GB)

We do not sell "OEM" memory which may be incompatible, unstable or prone to early failure.

Warranty: Lifetime

Memory expert since 1990. All parts are tested and guaranteed compatible.

No hassle exchanges. Brand name parts only-No unknown and overclocked parts.

Quick shipping.

Guaranteed and tested. 100% compatible with many systems including :

HP Compaq Business Desktop dc5800 SFF Microtower

HP Compaq Business Desktop dc5850 SFF Microtower

HP Compaq Business Desktop dc7700 SFF CMT

HP Compaq Business Desktop dc7700 Ultra Slim

HP Compaq Business Desktop dc7800 SFF CMT MT

HP Compaq Business Desktop dc7900 SFF CMT MT