Brand AddOn , Model 840758-091-AM Chip By Value x4, CAS Latency CL17, Compatible OEM HP®, Compatible With OEM Part Number(s) 840758-091 DIMM Type Registered, Error Correction ECC, Form Factor RDIMM, Memory Size 32GB, Memory Speed DDR4-2666MHz, Memory Voltage 1.2V, Pins 288, Rank Dual, Speed 2666MHz, Technology DDR4, Factory Original Tier 1 Yes, Product Shipping Dimension(HxWxD) 0.5 in. x 2 in. x 6.5 in. Product Shipping Weight(LB) 0.75, Kit No Kit - 1 Piece, What's In The Box 1x memory module, HP® 840758-091 Compatible Factory Original 32GB DDR4-2666MHz Registered ECC Dual Rank x4 1.2V 288-pin CL17 RDIMM,