HP Q7721AX | 128MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 200-Pin SO-DIMM 2.5V Memory Module

Here are the technical specs for the HP 128MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 200-Pin SoDimm 2.5V Memory Module:
- Memory Size: 128MB
- Memory Technology: DDR SDRAM
- Memory Speed: 266MHz
- Memory Standard: PC2100
- Error Checking: Non-ECC
- Signal Processing: Unbuffered
- CAS Latency: CL2.5
- Pin Count: 200
- Form Factor: SoDimm
- Voltage: 2.5V

Helpful notes:
1. This memory module is compatible with laptops that support DDR-266MHz memory.
2. Non-ECC memory is faster than ECC memory, but does not provide error correction.
3. Check your laptop's manual or manufacturer's website to ensure compatibility with this memory module.