OWC 4GB UPGRADE: Consists of a single 4GB DDR3 1600 PC3-12800 CL11 1Rx8 240-pin 1.5V Non-ECC Unbuffered DIMM Memory RAM Module Upgrade memory module compatible with Dell OptiPlex models XE2 SFF And XE2 Tower.
100% COMPLIANT: JEDEC-Standard and ROHS Compliant. Warranty-Safe Upgrade. Designed and Tested to Meet or Exceed all Manufacturer OEM Specs.
INDUSTRY LEADING: Consumer-friendly Advanced Replacement Program and Limited Lifetime Warranty, which includes Free Tech Support by Other World Computing.