Samsung M393T5160CZ4-CE6 | 4GB DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory Module

Technical specifications:
- Memory type: DDR2 SDRAM
- Capacity: 4GB
- Memory speed: 667MHz
- Latency: CL5
- Pin count: 240-pin DIMM
- Rank: Dual rank
- Error checking and correction (ECC): Yes
- Registered: Yes
- Voltage: 1.8V
- Form factor: DIMM
- Memory organization: X4
- Chip organization: 256x4

Helpful notes:
1. This memory module is compatible with servers and workstations that require ECC registered memory.
2. The dual rank configuration allows for better performance in systems that support it.
3. Make sure to check your system's specifications before purchasing to ensure compatibility.