Kingston KFJ-R610/512 | 512MB Kit (2 X 256MB) DDR-266MHz PC2100 ECC Unbuffered CL2.5 184-Pin DIMM Memory

1. Memory Type: DDR SDRAM
2. Memory Size: 512MB (2 x 256MB)
3. Memory Speed: 266MHz (PC2100)
4. CAS Latency: CL2.5
5. Error Correction Code (ECC): ECC
6. Buffered/Unbuffered: Unbuffered
7. Pin Count: 184-pin
8. Voltage: 2.5V
9. Form Factor: DIMM
10. Rank: 2Rx8
11. Number of Modules: 2
12. Memory Configuration: Dual Channel

Helpful notes:
1. This memory kit is compatible with systems that require ECC memory.
2. Make sure to check your system's maximum memory capacity before purchasing.
3. This kit is designed for use in older systems that require DDR memory.