CT51272BA1067.M18FDN - Crucial 4GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Dual Rank Memory Module

Technical Specs:
- Capacity: 4GB
- Memory Type: DDR3 SDRAM
- Memory Speed: 1066 MHz
- PC Rating: PC3-8500
- Error Correction Code (ECC): ECC
- Buffered/Unbuffered: Unbuffered
- CAS Latency: CL7
- Pin Count: 240
- Rank: Dual Rank

Helpful Notes:
- ECC memory is designed for servers and workstations, providing extra protection against data corruption.
- Unbuffered memory is faster but less stable than buffered memory.
- Dual rank memory modules offer better performance than single rank modules.