Manufacture:SK Hynix HMA41GR7MFR8N-TF Part Number: HMA41GR7MFR8N-TFBus speed: 2133MHz DDR4 PC4-17000ECC Type: ECC Registered (RDIMM)Tested & Guaranteed! BULK.  Message us with any questions.Buy from a reputable seller; see our feedback!Ships fast, packed professionally.Please note this is ECC memory. For server or select workstation use only. Please check compatibility prior to purchase.We take great care in the build, test and ship phases when fulfilling orders for our customers. However, if your purchase is damaged during shipping, arrives DOA or is otherwise not as described, it can be returned for a replacement or full refund within 30 days. LiquidationPCs is committed to providing an excellent and pleasurable buying experience for all of our customers.