Crucial CT10001485 | 4GB DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 260-Pin SoDimm Single Rank Memory Module for Latitude 12 5280

Technical Specs:
- Capacity: 4GB
- Memory Type: DDR4 SDRAM
- Memory Speed: 2133 MHz
- Form Factor: 260-pin SoDIMM
- CAS Latency: CL15
- Rank: Single Rank
- Error Correction Code: Non-ECC
- Buffered/Unbuffered: Unbuffered

Helpful Notes:
1. This memory module is compatible with the Latitude 12 5280 laptop.
2. It has a clock speed of 2133 MHz, which provides fast data transfer rates.
3. The module is unbuffered and non-ECC, which means it is not error-correcting and can't detect and correct common types of data corruption.