OWC 4GB DDR4 PC4-17000 2133MHz NON-ECC. Watch our OWC Basic Installation Video for Help. Compatibility Dell OptiPlex 7040 SFF. Dell OptiPlex 7040 Tower. Capacity 4GB Form Factor 288-PIN DIMM. 100% COMPLIANT: JEDEC-Standard and ROHS Compliant.
eBay