Samsung 1GB DDR2 SDRAM PC2-4200U (Unused) - Set of 4

The Samsung memory module 1GB 2Rx8 PC2-4200U-444-12-E3 is a DDR2 SDRAM module primarily used in desktop PCs from the mid-2000s.

Basic Specifications:
- Manufacturer: Samsung
- Capacity: 1GB
- Memory Standard: DDR2 SDRAM
- Module Standard: PC2-4200U (DDR2-533)
- Memory Speed: 533MHz
- Form Factor: 240-pin DIMM (for desktop PCs)

Detailed Specifications:
- Chip Configuration (Rank): 2Rx8 (Dual Rank, chips on both sides)
- CAS Latency (CL): CL4 (The first 4 in the model number indicates the CL value)
- Timings: 4-4-4-12 (Numbers controlling data transfer timing)
- Error Correction/Buffer: Non-ECC / Unbuffered (For general home and business PCs)
- Voltage: Typically 1.8V (Standard voltage for DDR2)

This memory is well-suited for motherboards equipped with Pentium 4 or early Core 2 Duo processors from that era. Please note that it is not compatible with current PCs (DDR4 or DDR5) due to differences in physical form factor.

Standard...DDR2

Memory Capacity...1GB