High-performance 4GB DDR2 Desktop Memory Quad Kit consisting of four (4) matching 1GB modules, part number M378T2953EZ3-CE6. This is a premium, fully benched original Samsung component array engineered for legacy system upgrades, multi-channel expansion, and retro desktop configuration maintenance.

Technical Specifications:
- Brand: Samsung
- Part Number: M378T2953EZ3-CE6
- Configuration: 4GB Quad Kit (4x 1GB Modules)
- Memory Type: DDR2 SDRAM
- Speed Rating: PC2-5300 / DDR2-667 (667MHz Native Baseline)
- Configuration Layout: Dual Rank x8 (2Rx8 Layout / 16 Chips Total)
- Timings: CL5 JEDEC Standard Profile (5-5-5 Parameters)
- Operating Voltage: 1.80V Standard Power Rail
- Form Factor: 240-Pin Desktop DIMM
- ECC Support: Non-ECC Unbuffered

Multi-Channel Performance Features:
- Symmetrical 2Rx8 Hardware Profile Across All 4 Slots
- Quad-Bank Matching Benchmark Stability
- Genuine Samsung Original Silicon Reliability

Compatibility Note:
- Vintage Legacy Desktop Hardware Only: Full-size 240-pin desktop DDR2 DIMM architecture. Please cross-reference your specific legacy motherboard and processor requirements before purchasing. These are classic mid-to-late 2000s desktop modules operating at a native 667MHz clock speed, making them ideal for retro gaming platforms like Intel Socket 775 or AMD Socket AM2 configurations running Windows XP or early Windows Vista. They are physically and electrically incompatible with older 184-pin DDR1 slots, newer 240-pin DDR3 layouts, or laptop SO-DIMM tracks.