CT51272AF80E.Y36F0D6 - Crucial 4GB DDR2-800MHz PC2-6400 ECC Fully Buffered CL5 240-Pin DIMM Dual Rank Memory Module

Technical specs:
- Capacity: 4GB
- Memory Type: DDR2 SDRAM
- Memory Speed: 800MHz (PC2-6400)
- CAS Latency: CL5
- Pin Count: 240-pin DIMM
- Rank: Dual Rank
- Error Correction Code (ECC): Yes
- Buffered/Unbuffered: Fully Buffered

Helpful notes:
1. This memory module is designed for servers and workstations that require ECC and fully buffered memory.
2. Make sure your motherboard supports DDR2 memory before purchasing this module.
3. Check your system's maximum memory capacity and make sure to not exceed it when upgrading.