A-Tech
A-Tech 4GB Replacement for Micron MT18JSF51272AZ-1G6 - DDR3 1600MHz PC3-12800E ECC Unbuffered UDIMM 240-Pin 2Rx8 1.5V - Single Server Memory RAM Stick (MT18JSF51272AZ-1G6-ATC)
Available Styles / Variations:
Enterprise ECC Stability
Validated by C.R. Vinoth Kumar ยท Founder & Senior Editor
This is an Error Correcting Code (ECC) server module designed to prevent silent data corruption in 24/7 server environments (like TrueNAS/ZFS or enterprise workloads). Ensure your motherboard and CPU officially support ECC before purchasing.
Current price
$18.67$4.67/GBAs of Jul 14, 2026 ยท Verify on Amazon ยท Price subject to change
$/GB vs DDR3 market avg
63% below avgDeal score
92/100
At $4.67/GB โ 63% below the DDR3 market average.
Buy on AmazonLoad alertsAlso sold elsewhere
Prices on this page are Amazon.com prices from our Creators API refresh (as of the last update). You can look up this kit (ASIN: B0B6GSM9CK) on other retailers such as Newegg or Crucial โ we do not display their prices here. Always verify the checkout price on Amazon before purchasing.
Product prices and availability are accurate as of the date of the last daily update and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product. As an Amazon Associate I earn from qualifying purchases.
At a Glance
Strengths
- 63% below the overall DDR3 market average $/GB
Limitations
- Limited review data โ only 2 Amazon reviews
- Limited price history โ recently added to tracking, trends not yet available
- Requires ECC-compatible CPU and motherboard โ not supported on most consumer platforms
All points are derived from price data, customer ratings, and product specifications โ not editorial opinion. Updated daily.
Is This RAM Right for You?
Based on 4GB DDR3 ECC DIMM specifications.
ECC RAM is not supported on gaming platforms (consumer CPUs/boards)
ECC RAM requires server-grade hardware โ not compatible with standard office PCs
ECC RAM protects long renders from silent data corruption โ ideal for professional workstations
ECC RAM detects and corrects memory errors โ required for data-critical servers and ZFS storage
This is a desktop DIMM โ laptop upgrades require SO-DIMM modules. See Laptop RAM Prices for compatible options.
Verdicts based on capacity, form factor, and ECC specifications โ not editorial opinion. Capacity recommendations reflect 2026 software requirements.
Price History
Updated daily โ track price trends over time
Current
$18.67
58d Low
$18.67
58d High
$18.67
58d Avg
$18.67
Speed Ranking
Top 13%
1600MHz ranks in the top 13% of all DDR3 speeds tracked (371 modules).
Z-Score Deviation
Fair / Average Price
Deviation: 1.00ฯ
This product is currently priced within normal historical margins.
Specifications
Memory TypeDDR generation (DDR4 vs DDR5) ยท guide | DDR3 |
CapacityTotal kit memory size ยท guide | 4GB |
SpeedFrequency in MT/s or MHz ยท guide | 1600MHz |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) | DIMM |
ECCError-correcting capability ยท guide | Yes |
VoltageOperating voltage level | 1.5V |
ASIN | B0B6GSM9CK |
Spotted a wrong price or spec? Report a data correction ยท How we verify data
Compatible Platforms
Always verify with your motherboard's QVL before purchasing.
Cheaper Alternatives
Same 4GB DDR3 โ lower $/GB than this product
Kingston
Kingston ValueRAM 4GB 1333MHz DDR3 ECC CL9 DIMM Desktop Memory KVR1333D3E9S/4G1% cheaper/GB
Ranked by lowest $/GB. Same 4GB DDR3 DIMM only. Prices updated daily.
DDR3 Price by Capacity
Average $/GB across all DDR3 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 4GBThis product | $7.51/GB |
| 8GB | $5.02/GB |
| 16GB | $4.11/GB |
| 32GB | $4.24/GB |
| 64GB | $4.22/GB |
| 128GB | $5.29/GB |
Also available from A-Tech
Same brand, different configurations
A-Tech
A-Tech 8GB RAM for Dell OptiPlex 9020, 9010, 7020, 7010, 3020, 3010, XE2 (USFF/SFF/MT/DT) | DDR3 1600 MHz DIMM PC3-12800 UDIMM Memory Upgrade
A-Tech
A-Tech 16GB Kit (2x8GB) RAM for Dell OptiPlex 9020, 9010, 7020, 7010, 3020, 3010, XE2 (USFF/SFF/MT/DT) | DDR3 1600 MHz DIMM PC3-12800 UDIMM Memory Upgrade
A-Tech
A-Tech 32GB Kit (4x8GB) RAM for Dell OptiPlex 9020, 9010, 7020, 7010, XE2 (SFF/MT/DT) | DDR3 1600 MHz DIMM PC3-12800 UDIMM Memory Upgrade
Frequently Asked Questions
Is the A-Tech 4GB 1600MHz DDR3 compatible with my motherboard?
This module is compatible with AMD FX Series (AM3+). 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?
At $4.67/GB, this module is 63% below the overall DDR3 market average $/GB across all capacities. Deal score: 92/100. Check the price history chart above to see how the price has moved recently. Prices are updated daily from Amazon.
What is 1600MHz RAM used for?
This is an ECC (Error-Correcting Code) RAM module designed for servers, workstations, and NAS systems where data integrity is critical. ECC RAM detects and corrects single-bit memory errors automatically. It requires a compatible CPU and motherboard โ most consumer platforms do not support ECC. See our ECC RAM guide for platform compatibility details.
How does A-Tech RAM compare to other brands?
A-Tech has 324 modules tracked with an average customer rating of 4.6โ . This specific module is 63% below the overall DDR3 market average $/GB. Browse all A-Tech 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 2ร2GB kit?
A single 4GB stick runs in single-channel mode, using only one memory channel. A 2ร2GB kit of the same total capacity runs in dual-channel mode, doubling memory bandwidth and improving real-world performance by 10โ30%. For best performance, always buy RAM in matched pairs.
Similar DDR3 RAM
Kingston
Kingston Technology ValueRAM 4GB 1333MHz DDR3 Non-ECC CL9 DIMM Desktop Memory p/n: KVR1333D3N9/4G
Samsung
Samsung M471B5273CH0-CH9 4gb Ddr3 1333mhz Pc3-10600 204-Pin Non-Ecc
Expertly Curated by C.R. Vinoth Kumar
Lead Hardware AnalystC.R. Vinoth Kumar is a senior systems systems engineer and memory hardware architect with over 12 years of experience benchmarking computer components, building performance virtualization servers, and assembling local LLM inference rigs. Every memory module tracked in our database is mathematically checked using custom telemetry to isolate nanosecond CAS latency bounds, price-per-gigabyte market averages, and Ryzen/Intel platform pairings.
As an Amazon Associate I earn from qualifying purchases. Prices updated daily. 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.