Current price
$399.00$6.23/GBAs of 28 Aug 2026, 06:40 UTC ยท Verify on Amazon ยท Price subject to change
Good time to buy
Price is near its tracked low of $399.00 โ in the bottom 20% of its recorded range. ยท 32% below 64GB DDR4 peer $/GB
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.
Supermicro
Supermicro 64GB DDR4 PC4-21300 2666MHz LRDIMM Quad Ranked Registered ECC Memory
This Supermicro 64GB 2666MHz DDR4 ECC desktop kit is $399.00 ($6.23/GB), near its tracked low. In stock on Amazon.
At a Glance
Strengths
- 32% below the 64GB DDR4 peer median $/GB
- Price near its tracked low of $399.00
Limitations
- Limited review data โ only 15 Amazon reviews
- 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.
Cheaper Alternatives
Same 64GB DDR4 โ lower $/GB than this product
38% cheaper/GB
Samsung
Samsung 64GB DDR4 2400MHz PC4-19200 ECC LRDIMM 4Rx4 Quad Rank 1.2V Load Reduced DIMM 288-Pin Server RAM Memory M386A8K40BM1-CRC35% cheaper/GB
Ranked by lowest $/GB. Same 64GB DDR4 DIMM only. Prices updated daily.
Specifications
Catalog data as of 28 Aug 2026, 06:40 UTC
Memory TypeDDR generation (DDR4 vs DDR5) ยท guide | DDR4 |
CapacityTotal kit memory size ยท guide | 64GB |
| Kit Config | โ Single stick โ runs in single-channel mode. Buy 2ร for dual-channel performance. |
SpeedFrequency in MT/s or MHz ยท guide | 2666MHz |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) | RDIMM |
ECCError-correcting capability ยท guide | Yes |
ASIN | B07DFLTWN3 |
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
$399.00
103d Low
$399.00
103d High
$499.00
103d Avg
$426.78
Deal score
93/100
vs this kit's history
Current price is 0.8ฯ below the tracked average of $426.78 - within a normal band for this ASIN.
Frequently Asked Questions
Is the Supermicro 64GB 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?
Yes โ Price is near its tracked low of $399.00 โ in the bottom 20% of its recorded range. At $399.00 ($6.23/GB), about 32% below the 64GB DDR4 peer median. 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 โ most consumer platforms do not support ECC. See our ECC RAM guide for platform compatibility details.
How does Supermicro RAM compare to other brands?
Compare this module against other brands using the RAM comparison tool. Key factors to consider: price per GB, customer ratings, warranty coverage, and compatibility with your specific motherboard.
What is the difference between a single 64GB stick and a matched multi-stick kit?
A single 64GB stick runs in single-channel mode. A matched 2ร32GB 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 DDR4 RAM
Crucial
Crucial 64GB Kit (16GBx4) DDR4 2400 MT/s (PC4-19200) DR x8 DIMM 288-Pin Memory - CT4K16G4DFD824A
A-Tech
A-Tech 64GB DDR4 2400MHz PC4-19200 ECC LRDIMM 4Rx4 (4DRx4) Quad Rank 1.2V Load Reduced DIMM 288-Pin Server RAM Memory Upgrade Module (A-Tech Enterprise Series)
Samsung
Samsung 64GB DDR4 2400MHz PC4-19200 ECC LRDIMM 4Rx4 Quad Rank 1.2V Load Reduced DIMM 288-Pin Server RAM Memory M386A8K40BM1-CRC
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 64GB DDR4 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.
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.
Price Range
Tracked low
$399.00Current
$399.00Tracked high
$499.00โ Near tracked low
Speed Ranking
Top 46%
2666MHz ranks in the top 46% of all DDR4 speeds tracked (2,032 modules).
DDR4 Price by Capacity
Average $/GB across all DDR4 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 8GB | $8.10/GB |
| 16GB | $7.81/GB |
| 32GB | $7.44/GB |
| 64GBThis product | $7.81/GB |
| 128GB | $7.42/GB |
Related pages
Amazon prices on this page. ASIN B07DFLTWN3 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.