Qty 50 pcs Kingston KVR533D2E4/512 Memory Module 512MB 533MHz DDR2 ECC CL4 DIMM Tray of 50 modules - multiple date codes / lot numbers New from old stock Module Configuration: Standard 64M X 72 Storage Capacity: 512MB Data Integrity Check: ECC Memory Speed: 533MHz Form Factor: 240-pin DIMM Technology: DDR2 SDRAM Latency: CL4 Supply Voltage: 1.8V, +- 0.1V Signal Processing: Unbuffered Manufactured by Kingston