Crucial 4GB kit (2GBx2) Upgrade for a Dell OptiPlex GX620 Series (Desktop, Mini-Tower, and Small Form Factor) System (DDR2 PC2-5300, Non-ECC,)

Your computer only supports modules made with a specific type of chip. Should you find what seems to be the exact same memory elsewhere for a lower price, be sure to double check that the model number matches exactly and the vendor is selling a quality part, it comes with a lifetime warranty, fast, telephone technical support by USA-based technicians and a quality product that our company stands behind.