IBM 09P3811 | 1GB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 200-Pin SoDimm 2.5V Memory Module

1. Memory Type: DDR SDRAM
2. Memory Size: 1 GB
3. Memory Speed: 266 MHz
4. Memory Standard: PC2100
5. Memory Technology: Non-ECC Unbuffered
6. CAS Latency: CL2.5
7. Pin Count: 200-Pin
8. Form Factor: SoDimm
9. Voltage: 2.5V
10. Error Checking: Non-ECC
11. Buffered/Unbuffered: Unbuffered
12. Dual/Single Rank: Single Rank

Notes:
1. This memory module is compatible with laptops that support DDR-266MHz PC2100 memory.
2. Non-ECC unbuffered memory is faster than ECC memory but does not provide error correction.
3. Single rank memory modules have a single set of memory chips on each side, making them more affordable than dual rank modules.