Micron
Micron Memory Bundle with 256GB (8x32GB) DDR4 PC4-21333 2666MHz (8 x MTA36ASF4G72PZ-2G6E1) Dual Ranked Registered ECC RDIMM Compatible with R630, R640, R730, R730XD, R740, R740XD, T630, T640 Servers
Available Styles / Variations:
Enterprise ECC Stability
Validated by C.R. Vinoth Kumar · 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
$1799.00$7.03/GBAs of May 30, 2026 · Verify on Amazon · Price subject to change
$/GB vs DDR4 market avg
32% below avgDeal score
84/100
At $7.03/GB — 32% below the DDR4 market average.
Consider waiting
Price is near its tracked high of $1,799.00 — in the top 25% of its recorded range. Prices may fall.
Verify Alternative Stores
Our systems refresh prices daily from Amazon.com to secure the absolute lowest USD market rate. You can cross-reference this RAM kit (ASIN: B08QC83CKH) against alternative marketplaces like Newegg or Crucial before buying.
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 we earn from qualifying purchases.
At a Glance
Strengths
- 32% below the overall DDR4 market average $/GB
Limitations
- Below-average customer rating (3.5★)
- Price near its tracked high of $1,799.00
- Requires ECC-compatible CPU and motherboard — not supported on most consumer platforms
All points are derived from price data, customer ratings, and product specifications — not editorial opinion. Updated daily.
Is This RAM Right for You?
Based on 256GB (8x32) DDR4 ECC DIMM specifications.
ECC RAM is not supported on gaming platforms (consumer CPUs/boards)
ECC RAM requires server-grade hardware — not compatible with standard office PCs
ECC RAM protects long renders from silent data corruption — ideal for professional workstations
ECC RAM detects and corrects memory errors — required for data-critical servers and ZFS storage
This is a desktop DIMM — laptop upgrades require SO-DIMM modules. See Laptop RAM Prices for compatible options.
Verdicts based on capacity, form factor, and ECC specifications — not editorial opinion. Capacity recommendations reflect 2026 software requirements.
Price History
Updated daily — track price trends over time
Current
$1,799.00
3d Low
$795.00
3d High
$1,799.00
3d Avg
$1,464.33
Price Range
Tracked low
$795.00Current
$1799.00Tracked high
$1799.00Near tracked high
Speed Ranking
Top 46%
2666MHz ranks in the top 46% of all DDR4 speeds tracked (1,546 modules).
About Micron
4.6★
avg rating
32
products tracked
Specifications
Memory TypeDDR generation (DDR4 vs DDR5) · guide | DDR4 |
CapacityTotal kit memory size · guide | 256GB (8x32) |
| Kit Config | ✓ 8× kit — dual-channel ready |
SpeedFrequency in MT/s or MHz · guide | 2666MHz |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) | RDIMM |
ECCError-correcting capability · guide | Yes |
ASIN | B08QC83CKH |
Spotted a wrong price or spec? Report a data correction · How we verify data
Cheaper Alternatives
Same 256GB DDR4 — lower $/GB than this product
40% cheaper/GB
31% cheaper/GB
Micron
Micron Memory Bundle with 256GB (8 x 32GB) DDR4 PC4-21333 2666MHz RDIMM (8 x MTA36ASF4G72PZ-2G6E1), Dual Ranked Registered ECC Memory11% cheaper/GB
Ranked by lowest $/GB. Same 256GB DDR4 DIMM only. Prices updated daily.
DDR4 Price by Capacity
Average $/GB across all DDR4 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 8GB | $9.68/GB |
| 16GB | $9.70/GB |
| 32GB | $9.02/GB |
| 64GB | $8.97/GB |
| 128GB | $6.58/GB |
| 256GBThis product | $3.86/GB |
Also available from Micron
Same brand, different configurations
Micron
Micron 8GB (1x8GB) DDR4 2400MHz RAM Memory PC4-2400T-SA1-11 MTA8ATF1G64HZ-2G3H1
Micron
Micron 8GB 1Rx8 PC4-2666V-U DDR4-21300 Non-ECC Memory MTA8ATF1G64AZ-2G6
Micron
Micron 4GB PC4-2400 DDR4 288-Pin Desktop Dimm Memory Module Mfr P/N MTA4ATF51264AZ-2G3B1
Frequently Asked Questions
Is the Micron 256GB (8x32) 2666MHz DDR4 compatible with my motherboard?
Compatibility depends on your motherboard's supported memory type (DDR4), speed, and capacity. Check your motherboard manufacturer's QVL list to confirm this module is validated for your specific board.
Is this DDR4 module a good deal right now?
At $7.03/GB, this module is 32% below the overall DDR4 market average $/GB across all capacities. Deal score: 84/100. Check the price history chart above to see how the price has moved recently. Prices are updated daily from Amazon.
What is 2666MHz 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 — most consumer platforms do not support ECC. See our ECC RAM guide for platform compatibility details.
How does Micron RAM compare to other brands?
Micron has 32 modules tracked with an average customer rating of 4.6★. This specific module is 32% below the overall DDR4 market average $/GB. Browse all Micron modules or use the comparison tool to see how it stacks up against Corsair, G.Skill, Kingston, and Crucial.
Is 256GB of RAM enough for gaming in 2026?
256GB is more than enough for gaming in 2026. Most AAA titles use 16–24GB alongside Discord and a browser. 256GB gives you headroom for streaming, recording, and running multiple applications simultaneously.
What is the difference between a single 256GB stick and a 2×128GB kit?
This is already a 8×32GB dual-channel kit — the correct configuration for maximum performance. Dual-channel mode doubles the memory bandwidth by using both memory channels simultaneously, improving performance in games and applications by 10–30% compared to a single stick of the same total capacity.
Similar DDR4 RAM
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A-Tech
A-Tech 256GB Kit (8x32GB) DDR4 2133MHz PC4-17000 ECC RDIMM 2Rx4 Dual Rank 1.2V ECC Registered DIMM 288-Pin Server & Workstation RAM Memory Upgrade Modules (A-Tech Enterprise Series)
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A-Tech 256GB Kit (8x32GB) DDR4 2400MHz PC4-19200 ECC RDIMM 2Rx4 Dual Rank 1.2V ECC Registered DIMM 288-Pin Server & Workstation RAM Memory Upgrade Modules (A-Tech Enterprise Series)
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 we earn from qualifying purchases. Prices are updated daily and may change on Amazon.