CT51272AB667P - Crucial 4GB DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory Module

Technical Specs:
- Capacity: 4GB
- Memory Type: DDR2 SDRAM
- Memory Speed: 667MHz (PC2-5300)
- Error Checking: ECC
- Signal Processing: Registered
- CAS Latency: CL5
- Rank: Dual
- Pin Count: 240

Helpful Notes:
1. This memory module is designed for servers and workstations that require ECC and registered memory.
2. Make sure to check your motherboard's compatibility with DDR2 memory before purchasing.
3. Upgrading your system's memory can improve overall performance and multitasking capabilities.