Product Overview
1GB PC2-5300 DDR2-667 CL5 Non-ECC 240-Pin Desktop Memory
Condition
Used condition. Visual inspection only. Function testing not performed. Module shows clean PCB surfaces and light contact wear on gold edge pins from prior installation. Dual factory labels are intact and legible: Micron MT8HTF12864AY-667E1 and Crucial CT12864AA667.8FE.
Same or next business day shipping from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
A no-hassle satisfaction guarantee on every order.
Product Overview
Crucial / Micron MT8HTF12864AY-667E1 (retail equivalent CT12864AA667.8FE) is a 1GB DDR2 SDRAM memory module designed for desktop motherboards requiring 240-pin unbuffered DIMMs. Operating at 667 MHz (PC2-5300), it features a single-rank 1Rx8 layout with standard CAS latency 5 timing (5-5-5-12). It provides direct hardware replacement for mid-2000s legacy systems, industrial controllers, point-of-sale terminals, and retro computing builds that require reliable OEM non-ECC DDR2 architecture.
Key Features
- 1GB capacity across a 128M x 64 module organization
- PC2-5300 speed rating operating at DDR2-667 MHz
- Standard CAS Latency 5 (CL5) timing profile (5-5-5-12)
- 240-pin unbuffered, non-ECC desktop DIMM form factor
- Single-rank 1Rx8 module design for broad motherboard compatibility
- Dual-labeled with Micron OEM and Crucial retail part designations
Applications
- Replacing failed memory or populating matched channels in legacy Windows XP or Linux workstations
- Maintaining dedicated industrial automation PCs, CNC controller terminals, and test instrumentation
- Restoring period-correct mid-2000s retro gaming rigs and vintage socket 775 or AM2 builds
- Serving as a diagnostic spare module for testing DDR2 desktop motherboard post sequences
Frequently Asked Questions
Will this memory module work in a laptop or small-form-factor system requiring SODIMM?
No. This is a standard full-size 240-pin desktop DIMM measuring approximately 133 mm in length. It does not fit laptop SODIMM slots.
Does this RAM support ECC or server motherboards?
This module is non-ECC and unbuffered. It is intended for standard consumer desktop motherboards and workstation boards that require non-ECC unbuffered memory.
Can this stick run alongside DDR2-800 (PC2-6400) modules?
Most DDR2 motherboards will run mixed-speed memory at the speed of the slowest installed stick (667 MHz), provided timings and voltages match motherboard requirements.
Why choose this individually documented module over a random surplus lot?
You get the specific module photographed with confirmed Crucial and Micron identifiers and clean contact pins, eliminating the gamble of unverified bulk lots. Shipping is $8 flat rate, orders over $28 ship free, and orders leave our Idaho warehouse the same or next business day.
Nothing beats slotting in an exact matching module and seeing an older workstation post on the first try. Built by Micron when DDR2 was front-line tech, ready to keep your legacy system running.
