4GB Total. 4 Pieces of  1GB 128M X 64 Non-ECC 533MHz PC2-4200 240-pin Unbuffered DIMM (DDR2, 1.8V, CL5, Gold Leads) .

WILL WORK IN 533MHZ SYSTEMS ONLY. PLEASE CHECK BEFORE BUYING.

NEW, MADE WITH BRAND NAME CHIPS. Tested. We do not sell "OEM" memory which may be incompatible, unstable or prone to early failure.

Warranty: Lifetime

Support: Email us through eBay or call us Toll Free at  1-800-634-4719.

Payments: We prefer Paypal. If you wish to pay by credit card please call us Toll Free at 1-800-634-4719.

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 800MHz versions of many systems including :

Compatible with :

Dell OptiPlex 700

Dell Optiplex 740 

Dell Optiplex 745

Dell Optiplex 745 MINITOWER 

Dell Optiplex 745 Small Form Factor 

Dell Optiplex 745 Ultra Small Form Factor