Samsung
Samsung Memory Bundle with 256GB (8 x 32GB) DDR4 PC4-21300 2666MHz RDIMM (8 x M393A4K40CB2-CTD) Registered Server Memory
Current price
$1,799.00
$7.03/GB
As of Apr 14, 2026 · Verify on Amazon · Price subject to change
vs avg $/GB
30% cheaper
Deal score
93/100
At $7.03/GB — 30% below the DDR4 market average.
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At a Glance
Strengths
- +30% below the overall DDR4 market average $/GB
- +Price near its tracked low of $1,799.00
Limitations
- −Limited review data — only 12 Amazon reviews
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 DIMM specifications.
256GB eliminates memory as a bottleneck for AAA titles and multitasking
256GB handles office apps, video calls, and multiple browser tabs comfortably
256GB handles 4K/8K video editing, complex 3D rendering, and large project files
Non-ECC RAM is not recommended for servers or NAS — silent data corruption risk without error correction
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 $1,799.00 — 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
$1,799.00
Current
$1,799.00
Tracked high
$2,584.99
✓ 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 | 256GB (8x32) |
| Speed | 2666MHz |
| Form Factor | RDIMM |
| ASIN | B081K6YHL4 |
Platform Pairing Guide
How well 2666MHz performs on each platform — based on memory controller characteristics and manufacturer guidance.
| Platform | Benefit |
|---|---|
| AMD AM4 (Ryzen 1000–5000) | ✓ Good |
| Intel LGA1200 (10th/11th gen) | ★ Optimal |
| Intel LGA1700 DDR4 (12th–14th gen) | ✓ Good |
Platform guidance based on AMD and Intel official specifications and independent testing. Always verify compatibility with your specific motherboard's QVL.
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 |
| 64GB | $9.33/GB |
| 128GB | $8.96/GB |
Also available from Samsung
Same brand, different configurations
Samsung
M471A1K43CB1-CTD 8GB DDR4 PC4-21300, 2666MHZ, 260 PIN SODIMM, 1.2V, CL 19 laptop ram memory module
Samsung
M378A1K43CB2-CTD Memory Module (8 GB, 1 x 8 GB, DDR4, 2666 MHz, 288-pin DIMMM, Black, Green)
Samsung
8GB DDR4 PC4-21300 2666MHz 288 PIN UDIMM 1.2V CL 19 Desktop ram Memory Module M378A1K43DB2-CTD
Frequently Asked Questions
Is the Samsung 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 30% 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?
DDR4 RAM is used in Intel LGA1200/LGA1700 and AMD AM4 (Ryzen 1000-5000) systems. It offers excellent value for existing platforms. 2666MHz is a standard DDR4 speed tier.
How does Samsung RAM compare to other brands?
Samsung has 137 modules tracked with an average customer rating of 4.6★. This specific module is 30% below the overall DDR4 market average $/GB. Browse all Samsung modules or use the comparison tool to see how it stacks up against Corsair, G.Skill, Kingston, and Crucial.
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Crucial RAM 32GB Kit (16GBx2) DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Desktop Memory CT2K16G4DFD832A