The Kingston KVR533D2N4-512-3 is available from Calhoun Technologies. Calhoun Tech can help your company save up to 80% on IT Hardware. Manufacturer: Kingston Part Number: KVR533D2N4-512-3 Details: Kingston KVR533D2N4-512-3 MEMORY 512MB 533MHz, KVR533D2N4/512, 99U5260-001.A01LF 1.8V