Check the listing for details. 8GB Memory for Lenovo EMC PX12-450R PC3-12800E ECC UDIMM RAM. Condition: Open box. Listed at 24.99 USD. 8GB DDR3 PC3-12800E Unbuffered ECC DIMM Dual Rank x8 Memory. CAUTION: SERVER MEMORY - DO NOT BUY FOR STANDARD PCs Please make sure this is the correct memory for your computer. Please send us a question if you are not sure if it will work in your computer. Certain systems take both registered and unbuffered DIMMs. The two types cannot be mixed. Please make sure you need unbuffered DIMMs before buying this item. Compatible with: Lenovo EMC PX12-450R Warranty: Lifetime Replacement WarrantyPremium Quality: Brand name parts only - no unknown and overclocked parts. All memory modules made from major brand memory chips. We do not use generic or OEM chips that are unreliable. Compatibility: Industry standard memory. Guaranteed 100% compatible. Experience: Memory expert since 1990. Exchanges and Returns: No hassle exchanges and refunds.Shipping: Quick shipping. Shipped in well padded envelope or box with antistatic packing.