HP EA867AV | 512MB Kit (2 X 256MB) PC2-4200 DDR2-533MHz non-ECC Unbuffered CL4 200-Pin SoDimm Memory

1. Memory Type: DDR2 SDRAM
2. Memory Size: 512MB (2 x 256MB)
3. Memory Speed: 533MHz
4. Memory Standard: PC2-4200
5. CAS Latency: CL4
6. Pin Count: 200-pin
7. Form Factor: SoDIMM
8. Error Correction Code: Non-ECC
9. Buffered/Unbuffered: Unbuffered
10. Voltage: 1.8V
11. Technology: Double Data Rate Synchronous Dynamic Random-Access Memory (DDR SDRAM)
12. Compatibility: HP Business Notebook and Mobile Workstation models

Helpful Notes:
1. Upgrading your laptop's memory can improve overall performance and speed.
2. Make sure to check your laptop's specifications and compatibility before purchasing.
3. It is recommended to install memory in pairs for optimal performance.