KVR667D2D8F5VK2/4G - Kingston 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin DIMM 1.35V Low Voltage Dual Rank X 8 Memory

1. Memory Type: DDR2 SDRAM
2. Memory Size: 4GB (2 x 2GB)
3. Memory Speed: 667MHz (PC2-5300)
4. CAS Latency: CL5
5. Error Checking: ECC
6. Buffered/Unbuffered: Fully Buffered
7. Pin Count: 240-Pin DIMM
8. Voltage: 1.35V (Low Voltage)
9. Rank: Dual Rank x8
10. Memory Configuration: Dual Channel
11. Compatibility: Designed for use with servers and workstations
12. Heat Spreader: Yes, with Kingston's signature blue heat spreader

Helpful Notes:
1. ECC memory is designed to detect and correct single-bit errors, providing greater reliability in server and workstation environments.
2. Fully Buffered memory modules use an advanced memory buffer to reduce electrical load on the memory controller, allowing for greater memory capacity and reliability.
3. The low voltage design of this memory kit can help reduce power consumption and heat generation in compatible systems.