AddOn 32GB PC3-8500 DDR3-1066MHz ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Quad Rank Memory Module. This AddOn Memory Module is a high-performance 32GB PC3-8500 DDR3-1066MHz ECC Registered DIMM designed for enterprise servers and workstations. With a low voltage of 1.35V, this quad rank memory module features 240 pins and a CAS latency of CL7, ensuring reliable and efficient performance. Its Error-Correcting Code (ECC) helps prevent data corruption, making it ideal for critical applications requiring stability and dependability.