Alternate color or configuration shown AddOn Networks MEM2821-256U512D-AO memory module 0.5 GB 1 x 0.5 GB DDR 266 MHz ECC AddOn Networks MEM2821-256U512D-AO. Internal memory: 0.5 GB, Memory layout (modules x size): 1 x 0.5 GB, Internal memory type: DDR, Memory clock speed: 266 MHz, Memory form factor: 184-pin DIMM, ECC Manufacturer: AddOn Networks SKU: 4216088 Manufacturer part number: MEM2821-256U512D-AO GTIN: 0821455003503 MSRP: $459.00 Price: $310.38 Qty: Add to cart Custom wishlist OK Add to wishlist Add to compare list Email a friend Add-On Computer's entire line of memory modules allows you and your business to be more efficient. Our memory line includes the most reliable & high performing memory modules. Overview Specifications Contact Us Add-On Computer's entire line of memory modules allows you and your business to be more efficient. Our memory line includes the most reliable & high performing memory modules. Products specifications Attribute name Attribute value Packaging data Package type DIMM Features Internal memory 0.5 GB Internal memory type DDR Memory clock speed 266 MHz Memory form factor 184-pin DIMM ECC Yes Memory layout (modules x size) 1 x 0.5 GB Product tags (51242)