Need to max out the RAM in your server? This is a kit of two A-Tech 32GB DDR3 ECC Registered RDIMMs, giving you a total of 64GB. The specs are server-grade: DDR3-1333 (PC3-10600R), 240-pin, 1.5V, and they're Quad Rank (4Rx4). The ECC (Error-Correcting Code) and Registered features are essential for server stability, preventing crashes and data corruption in mission-critical systems. The model/sku is EB21-K121, and the MPN is AT32G2D3D1333RQ4N15V. These modules are brand new and come with a lifetime warranty from A-Tech. They're made in the USA. Perfect for upgrading older Dell PowerEdge, HP ProLiant, or IBM/Lenovo servers that use this specific type of memory. Just make sure your server motherboard supports 32GB modules and 4Rx4 rank. This is a ton of memory for virtualization, databases, or file servers. A great way to breathe new life into an older server without spending a fortune on brand-new hardware. Check your server's compatibility guide before you buy!