99A1758 - IBM 4MB SIMM Flash Memory for W820

Technical specifications:
- Memory capacity: 4MB
- Memory type: SIMM
- Memory speed: Unknown
- Memory voltage: Unknown
- Memory form factor: Unknown
- Compatibility: IBM W820
- Pin count: 72
- Error checking: Unknown
- Registered: Unknown
- Buffered: Unknown
- CAS latency: Unknown
- Memory organization: Unknown

Helpful notes:
1. This memory upgrade is compatible only with IBM W820.
2. This is a SIMM memory module, so make sure your motherboard supports it before purchasing.
3. Check the maximum memory capacity of your system before purchasing to ensure compatibility.