Current price
$35.98$8.99/GBAs of 28 Aug 2026, 06:40 UTC ยท Verify on Amazon ยท Price subject to change
39% above peer $/GB
$8.99/GB โ compare cheaper alternatives below
As an Amazon Associate I earn from qualifying purchases. Prices as of 28 Aug 2026, 06:40 UTC. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Crucial
Crucial 4GB Single DDR3 1066 MT/s (PC3-8500) CL7 SODIMM 204-Pin Notebook Memory Module CT51264BC1067
This Crucial 4GB 1066 MHz DDR3 SO-DIMM laptop kit is $35.98 ($8.99/GB), 39% above similar peer $/GB. In stock on Amazon. Fits Laptop โ DDR3 SO-DIMM.
At a Glance
Strengths
- 4.6โ average customer rating (231 reviews)
- Limited Lifetime Warranty from Crucial
Limitations
- 39% above the 4GB DDR3 peer median $/GB
- Price near its tracked high of $39.95
All points are derived from price data, customer ratings, and product specifications โ not editorial opinion. Updated daily.
Consider waiting
Price is near its tracked high of $39.95 โ in the top 25% of its recorded range. Prices may fall.
Cheaper Alternatives
Same 4GB DDR3 โ lower $/GB than this product
MemoryMasters
MemoryMasters Kingston Value RAM 4GB 1333MHz PC3-10600 DDR3 Non-ECC CL9 SODIMM SR X8 Notebook Memory (KVR13S9S8/4)59% cheaper/GB
NEMIX RAM
NEMIX RAM 4GB (1X4GB) DDR3 1600MHz PC3-12800 2Rx8 1.35V 204-PIN Non-ECC SODIMM Compatible with Samsung M471B5273EB0-YK0 Laptop PC Memory59% cheaper/GB
58% cheaper/GB
Ranked by lowest $/GB. Same 4GB DDR3 SO-DIMM only. Prices updated daily.
Specifications
Catalog data as of 28 Aug 2026, 06:40 UTC
Memory TypeDDR generation (DDR4 vs DDR5) ยท guide | DDR3 |
CapacityTotal kit memory size ยท guide | 4GB |
SpeedFrequency in MT/s or MHz ยท guide | 1066 MHz |
CAS LatencyClock cycles response delay ยท guide | CL7 |
True LatencyAbsolute nanosecond latency | 13.13 ns(High latency)= (7 ร 2000) รท 1066 |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) ยท guide | SO-DIMM |
ASIN | B001KB21KA |
Spotted a wrong price or spec? Report a data correction ยท How we verify data
Specs & prices refreshed 28 Aug 2026, 06:40 UTC. Verify on Amazon at checkout.
Price History
Updated daily โ track price trends over time
Current
$35.98
102d Low
$20.51
102d High
$39.95
102d Avg
$31.27
vs this kit's history
Current price is 0.6ฯ above the tracked average of $31.27 - within a normal band for this ASIN.
Frequently Asked Questions
Is the Crucial 4GB 1066 MHz DDR3 compatible with my motherboard?
This module is compatible with Laptop โ DDR3 SO-DIMM. Always verify with your motherboard's QVL (Qualified Vendor List) before purchasing, as compatibility can vary by board revision.
Is this DDR3 module a good deal right now?
Price is near its tracked high of $39.95 โ in the top 25% of its recorded range. Prices may fall. At $35.98 ($8.99/GB), consider waiting for a dip or compare cheaper alternatives below. Prices are updated daily from Amazon.
What is 1066 MHz RAM used for?
This RAM module is designed for laptop and mobile systems using SO-DIMM slots. Check your system's specifications to confirm compatibility before purchasing.
How does Crucial RAM compare to other brands?
Crucial has 124 modules tracked with an average customer rating of 4.6โ . Browse all Crucial modules or use the comparison tool to see how it stacks up against Corsair, G.Skill, Kingston, and Crucial.
Is 16GB of RAM enough for gaming in 2026?
4GB is below the 16GB minimum recommended for gaming in 2026. Most modern AAA titles require 12โ16GB. Consider upgrading to at least 16GB for a smooth gaming experience.
What is the difference between a single 4GB stick and a matched multi-stick kit?
A single 4GB stick runs in single-channel mode. A matched 2ร2GB kit of the same total capacity enables dual-channel mode, doubling memory bandwidth and typically improving real-world performance by 10โ30%. For best results, buy RAM in matched kits.
Similar DDR3 RAM
Samsung
Samsung 4GB DDR3 Memory SO-DIMM 204pin PC3L-12800S 1600MHz M471B5273CH0-YK0
Timetec
Timetec 4GB DDR3 1066MHz PC3-8500 Non-ECC Unbuffered 1.5V CL7 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook PC Computer Memory RAM Module Upgrade (4GB)
Compatibility & buying details
Use cases, platforms, motherboard notes, upgrade math, and analyst notes
Compatibility & buying details
Use cases, platforms, motherboard notes, upgrade math, and analyst notes
Is This RAM Right for You?
Based on 4GB DDR3 SO-DIMM specifications.
Laptop RAM โ suitable for gaming laptops with compatible slots
4GB is below the recommended minimum for comfortable everyday use
4GB is insufficient for video editing or 3D rendering workloads
SO-DIMM laptop RAM is not used in servers โ servers require DIMM or RDIMM modules
SO-DIMM form factor โ correct type for laptop memory upgrades. Verify your laptop has an accessible slot.
Verdicts based on capacity, form factor, and ECC specifications โ not editorial opinion. Capacity recommendations reflect 2026 software requirements.
Limited Entry-Level Capacity
Validated by C.R. Vinoth Kumar ยท Founder & Senior Editor
8GB of total memory is extremely marginal in 2026. Windows 11 uses 3-4GB at idle, leaving very little headroom for multitasking or gaming. We highly recommend upgrading to at least 16GB, or 32GB to prevent page-file stutters.
Price Range
Tracked low
$20.51Current
$35.98Tracked high
$39.95Near tracked high
Speed Ranking
Top 98%
1066 MHz ranks in the top 98% of all DDR3 speeds tracked (422 modules).
About Crucial
4.6โ
avg rating
124
products tracked
Compatible Platforms
Always verify with your motherboard's QVL before purchasing.
DDR3 Price by Capacity
Average $/GB across all DDR3 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 4GBThis product | $6.61/GB |
| 8GB | $4.18/GB |
| 16GB | $3.09/GB |
| 32GB | $3.50/GB |
| 64GB | $3.13/GB |
| 128GB | $7.87/GB |
Upgrade Cost Calculator
How much more (or less) would you spend to step up or down in capacity? Prices shown are the cheapest available DDR3 SO-DIMM in each tier today.
Current
4GB
$35.98$8.99/GBPrices are the lowest available in each tier from our daily database โ verify on Amazon before purchasing. Only DDR3 SO-DIMM modules compared.
Also available from Crucial
Same brand, different configurations
Related pages
Amazon prices on this page. ASIN B001KB21KA may also appear on Newegg - we do not show competitor prices.
Reviewed by C.R. Vinoth Kumar
Editor & FounderVinoth is an InfoSec consultant, independent technical blogger, and the developer of RAM Prices, with 12+ years in IT. He reviews buying guides and maintains the site's automated checks for price per GB, specification confidence, availability, and AMD/Intel platform compatibility. See the methodology for the exact ranking rules and limitations.
As an Amazon Associate I earn from qualifying purchases. Prices as of 28 Aug 2026, 06:40 UTC. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.