Wintec 4 GB Set (2 x 2 GB) PC2-6400 DDR2 240-Pin ECC DIMM Desktop Memory Upgrade your desktop's performance and reliability with this tested set of Wintec PC2-6400 DDR2 RAM. This kit includes two 2 GB modules for a total of 4 GB of memory, offering enhanced multitasking and faster application loading. Key Specifications: Total Capacity: 4 GB (Kit of 2 x 2 GB modules) Type: DDR2 SDRAM (DIMM, 240-Pin) Speed: PC2-6400 (800 MHz) Part Number: 39748381C/802-02216 (as shown on memory stick) Condition Details (Used): Condition: Pulled from a working system. Testing: Thorough memory tests were performed on this RAM showing no issues and ensuring it is fully functional. ⚠️ IMPORTANT COMPATIBILITY NOTE: This is ECC (Error-Correcting Code) Memory. This type of RAM is primarily used in Workstations and Servers. It is essential that your desktop motherboard or system is specifically designed to support ECC RAM, as it will generally NOT work in standard non-ECC desktop motherboards. Please check your system's manual before purchasing. SKU: 00052