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 dx1000 Microtower

HP Compaq Business Desktop dx2310 Microtower

HP Compaq Business Desktop dx2355 Microtower

HP Compaq Business Desktop dx2358 Microtower

HP Compaq Business Desktop dx2390

HP Compaq Business Desktop dx2400 Microtower

HP Compaq Business Desktop dx2420 Microtower

HP Compaq Business Desktop dx2480 Microtower

HP Compaq Business Desktop dx2710 Microtower SFF

HP Compaq Business Desktop dx2718 Microtower SFF

HP Compaq Business Desktop dx2810 Microtower

HP Compaq Business Desktop dx2810 SFF

HP Compaq Business Desktop dx7400 Microtower SFF

HP Compaq Business Desktop dx7500 Microtower

HP Compaq Business Desktop dx7500 Small Form Factor