Supermicro
Supermicro 64GB DDR4 PC4-21300 2666MHz LRDIMM Quad Ranked Registered ECC Memory
Current price
$478.98
$7.48/GB
As of Apr 14, 2026 · Verify on Amazon · Price subject to change
vs avg $/GB
26% cheaper
Deal score
93/100
At $7.48/GB — 26% below the DDR4 market average.
Buy on AmazonProduct 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. Affiliate link.
At a Glance
Strengths
- +26% below the overall DDR4 market average $/GB
- +Price near its tracked low of $478.98
Limitations
- −Limited review data — only 15 Amazon reviews
- −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 64GB 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
Good time to buy
Price is near its tracked low of $478.98 — in the bottom 20% of its recorded range.
Based on tracked price history for this ASIN. More data points accumulate over time — check back as history grows.
Price Range
Tracked low
$478.98
Current
$478.98
Tracked high
$499.00
✓ Near tracked low
Speed Ranking
Top 46%
2666MHz ranks in the top 46% of all DDR4 speeds tracked (1,762 modules).
Specifications
| Memory Type | DDR4 |
| Capacity | 64GB |
| Speed | 2666MHz |
| Form Factor | RDIMM |
| ECC | Yes |
| ASIN | B07DFLTWN3 |
DDR4 Price by Capacity
Average $/GB across all DDR4 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 8GB | $9.97/GB |
| 16GB | $9.79/GB |
| 32GB | $9.33/GB |
| 64GBThis product | $9.33/GB |
| 128GB | $8.96/GB |
Related pages
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?
At $7.48/GB, this module is 26% below the overall DDR4 market average $/GB across all capacities. Deal score: 93/100. 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 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.
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