Crucial Technology 4GB, 204-pin SODIMM, DDR3 PC3-8500,
Bottom line: The Micron Crucial Technology 4GB ($19.00 on Amazon as of 2026-10-06): Made by Micron, not a third-party module assembler; main trade-off: DDR3-1066 is slow next to DDR3-1333/1600 modules.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Made by Micron, not a third-party module assembler
- ✓ 204-pin SODIMM fits standard laptop and all-in-one slots
- ✓ 4GB per module doubles most 2GB legacy notebook configs
- ✓ DDR3-1066 speed matches older PC3-8500 system specs
Cons
- ✗ DDR3-1066 is slow next to DDR3-1333/1600 modules
- ✗ 204-pin SODIMM will not fit desktop DIMM slots
- ✗ Single 4GB module, not a dual-channel matched kit
- ✗ No heat spreader on the bare-PCB module
Manufacturer description
The Crucial 4GB DDR3 PC3-8500 SODIMM is a 204-pin laptop memory module built for older notebooks and all-in-one systems that top out at DDR3-1066 speeds. Because Crucial is a division of Micron, one of the world's largest DRAM manufacturers, these modules use in-house silicon rather than chips sourced and assembled by a third party - the difference between validated memory and the anonymous bargain modules that throw intermittent errors and random reboots. If you are reviving a Core 2 Duo laptop, an early Core i-series notebook, or a legacy all-in-one that shipped with 2GB, a 4GB PC3-8500…
SpecPicks Verdict
SpecPicks scored Micron Crucial Technology 4GB using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. Micron's memory & ram lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for memory & ram of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this 4GB module work in my laptop?
It fits systems that take 204-pin DDR3 PC3-8500 (DDR3-1066) SODIMMs. Check your laptop manual or a memory configurator for pin count, DDR3 generation, and the maximum module size your chipset supports before ordering.
Is this Crucial or Micron memory?
Both. Crucial is the consumer brand of Micron, one of the largest DRAM manufacturers in the world, so the module is built from Micron's own chips rather than assembled from parts bought elsewhere.
Can I use this with a faster DDR3-1333 or DDR3-1600 stick?
Mixing is usually possible, but the system typically runs all installed memory at the slowest module's speed - DDR3-1066 here. For consistent timings, pair it with another PC3-8500 module of the same capacity.
How many of these do I need for 8GB?
This listing is a single 4GB module, so two are needed for 8GB in a dual-slot laptop. Verify your system supports 8GB total; some older PC3-8500 platforms cap below that.
What is the warranty on this memory?
Crucial memory modules are typically covered by a manufacturer warranty, but terms vary by product and region. Check the current product listing or Crucial's support site for the warranty that applies to this SKU.
Key Features
- 204-pin SODIMM
- DDR3-1066
Full Specifications
| Brand | Micron |
|---|---|
| Voltage | 1.5 volts |
| RAM Size | 4 GB |
| Model Name | DDR3/DDR3L 1066 MT/s SODIMM Memory For Mac |
| Form Factor | SO-DIMM |
| Memory Speed | 1066 MHz |
| Model Number | CT4G3S1067M |
| Number of Pins | 204 |
| Mfr Part Number | CT4G3S1067M |
| Memory Generation | DDR3 |
| Compatible Devices | select Mac Systems |
| Data Transfer Rate | 1066 MHz |
| Memory Form Factor | SODIMM |
| Computer Memory Size | 4 GB |
| Warranty Description | Limited Lifetime |
| RAM Memory Technology | DDR3, DDR3L |
| Column Address Strobe Latency | 11 |
| Global Trade Identification Number | 00649528761965, 00649528762290, 05052916612407, 07038557307665 |
Ready to buy?
Crucial Technology 4GB, 204-pin SODIMM, DDR3 PC3-8500, is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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