Dell 311-4057 | 256MB PC100 100MHz non-ECC Unbuffered CL2 144-Pin SO-DIMM Memory Module

Technical specs:
- Capacity: 256MB
- Memory Type: SDRAM
- Memory Speed: PC100 (100MHz)
- Error Correction Code (ECC): Non-ECC
- Buffered/Unbuffered: Unbuffered
- CAS Latency Timing: CL2
- Pin Count: 144-Pin SoDimm

Helpful notes:
- This memory module is compatible with older laptops and desktops that require PC100 SDRAM.
- Non-ECC memory is not as reliable as ECC memory, but is more affordable.
- CL2 latency timing provides faster access to frequently used data, resulting in better performance.