High-performance 4GB DDR2 Laptop Memory Dual Kit consisting of two (2) closely matched 2GB modules: one (1) Crucial CT25664AC667.k16f and one (1) Crucial CT25664AC667.m16fj2. This unbuffered laptop kit has been thoroughly benched, stress-tested, and verified to run in perfect multi-channel synchronization for legacy laptop system upgrades, dual-channel expansions, and vintage mobile workstation configuration maintenance.Technical Specifications:
- Brand: Crucial (Micron)
- Module 1 Part Number: CT25664AC667.k16f
- Module 2 Part Number: CT25664AC667.m16fj2
- Configuration: 4GB Dual-Channel Kit (2x 2GB Modules)
- Memory Type: DDR2 SDRAM
- Speed Rating: PC2-5300S / DDR2-667 (667MHz Native Baseline)
- Configuration Layout: Dual Rank x8 (2Rx8 Layout / 16 Chips Total per module)
- Timings: CL5 JEDEC Standard Profile (5-5-5 Parameters)
- Operating Voltage: 1.80V Standard Power Rail
- Form Factor: 200-Pin Laptop SO-DIMM
- ECC Support: Non-ECC UnbufferedMulti-Channel Performance Features:
- Identical Native Clock Speed and Memory Density Profiles
- Symmetrical 2Rx8 Dual Rank Component Density Matrix
- Hand-Benched Multi-Channel Performance StabilityCompatibility Note:
- Vintage Laptop Hardware Only: Compact 200-pin laptop SO-DIMM architecture. Please cross-reference your specific legacy notebook or mobile workstation requirements before purchasing. These are classic mid-2000s modules operating at a native 667MHz clock speed, making them ideal for vintage Windows XP or early Windows Vista retro gaming notebooks (such as classic Apple MacBook/MacBook Pro Intel Core 2 Duo eras, vintage Dell Latitude D620/D630, or HP Compaq platforms). They are physically and electrically incompatible with standard 240-pin desktop DIMM slots, newer DDR3/DDR4 laptop tracks, or low-voltage layouts.
