Samsung M391B28973FH0-CH9 | 1GB DDR3-1333MHz PC3-10600 ECC Unbuffered CL9 240-Pin DIMM Single Rank Memory Module

Technical specs:
- Memory capacity: 1GB
- Memory type: DDR3 SDRAM
- Memory speed: 1333MHz (PC3-10600)
- Error Correction Code (ECC): Yes
- Buffered/Unbuffered: Unbuffered
- Rank: Single
- Pin count: 240
- CAS latency: CL9
- Voltage: 1.5V
- Form factor: DIMM
- Memory organization: x8
- Chip composition: 128Mx8
- Refresh rate: 8K

Helpful notes:
- ECC memory is more reliable than non-ECC memory as it can detect and correct single-bit errors.
- Unbuffered memory is faster than registered/buffered memory but has a lower maximum capacity.
- Make sure to check your motherboard's compatibility with this memory module before purchasing.