HYMP151F72CP8D5-S6 - Hynix 4GB DDR2-800MHz PC2-6400 ECC Fully Buffered CL6 240-Pin DIMM Quad Rank Memory Module

Technical specifications:
- Memory type: DDR2 SDRAM
- Capacity: 4GB
- Speed: 800MHz (PC2-6400)
- CAS latency: CL6
- Error checking: ECC
- Buffered/Unbuffered: Fully Buffered (FB-DIMM)
- Rank: Quad Rank
- Pin count: 240
- Voltage: 1.8V
- Form factor: DIMM
- Memory organization: x4
- Refresh: Auto Refresh and Self Refresh

Helpful notes:
- Fully Buffered DIMMs are not compatible with regular DDR2 DIMMs.
- ECC memory is designed to detect and correct single-bit errors.
- Quad rank memory modules can support more memory per channel, but may not be compatible with all systems.