Samsung
NEMIX RAM 8GB (1X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 288-PIN ECC Unbuffered UDIMM Memory Compatible with Samsung M391A1K43BB2-CTD
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
$69.99$8.75/GBAs of May 30, 2026 ยท Verify on Amazon ยท Price subject to change
$/GB vs DDR4 market avg
15% below avgDeal score
76/100
At $8.75/GB โ 15% below the DDR4 market average.
Good time to buy
Price is near its tracked low of $69.99 โ in the bottom 20% of its recorded range.
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: B07YXBWYR8) 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
- 15% below the overall DDR4 market average $/GB
- Compatible with 4 CPU platforms
- Price near its tracked low of $69.99
Limitations
- Below-average customer rating (2โ )
- Requires ECC-compatible CPU and motherboard โ not supported on most consumer platforms
- Single-stick configuration โ runs in single-channel mode unless paired with another stick
- Availability unconfirmed โ may be out of stock or delisted
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 8GB (1x8) 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.
Price History
Updated daily โ track price trends over time
Current
$69.99
38d Low
$69.99
38d High
$79.99
38d Avg
$71.57
Price Range
Tracked low
$69.99Current
$69.99Tracked high
$79.99โ Near tracked low
Speed Ranking
Top 46%
2666MHz ranks in the top 46% of all DDR4 speeds tracked (1,546 modules).
Z-Score Deviation
Fair / Average Price
Deviation: -0.43ฯ
This product is currently priced within normal historical margins.
Specifications
Memory TypeDDR generation (DDR4 vs DDR5) ยท guide | DDR4 |
CapacityTotal kit memory size ยท guide | 8GB (1x8) |
| 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 |
CAS LatencyClock cycles response delay ยท guide | CL19 |
True LatencyAbsolute nanosecond latency | 14.25 ns(High latency)= (19 ร 2000) รท 2666 |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) | DIMM |
ECCError-correcting capability ยท guide | Yes |
VoltageOperating voltage level | 1.2V |
ASIN | B07YXBWYR8 |
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.
DDR4 Price by Capacity
Average $/GB across all DDR4 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 8GBThis product | $9.68/GB |
| 16GB | $9.70/GB |
| 32GB | $9.02/GB |
| 64GB | $8.97/GB |
| 128GB | $6.58/GB |
Also available from Samsung
Same brand, different configurations
Samsung
8GB DDR4 PC4-21300 2666MHz 288 PIN UDIMM 1.2V CL 19 Desktop ram Memory Module M378A1K43DB2-CTD
Samsung
SAMSUNG 8GB DDR4 PC4-19200, 2400MHZ, 288 PIN DIMM, 1.2V, CL 17 Desktop RAM Memory Module M378A1K43BB2-CRC
Samsung
Samsung M378A2K43CB1-CTD 16 GB DDR4 2666 MHz Memory Module - Memory Modules (16 GB, 2 x 8 GB, DDR4, 2666 MHz, 288-pin DIMM, Black, Green)
Related pages
Frequently Asked Questions
Is the Samsung 8GB (1x8) 2666MHz DDR4 compatible with my motherboard?
This module is compatible with Intel 11th Gen Core (LGA1200), Intel 12th / 13th / 14th Gen (LGA1700), Intel Core X / Skylake-X (LGA2066 / X299), AMD Ryzen 1000โ5000 (AM4). Always verify with your motherboard's QVL (Qualified Vendor List) before purchasing, as compatibility can vary by board revision.
Is this DDR4 module a good deal right now?
At $8.75/GB, this module is 15% below the overall DDR4 market average $/GB across all capacities. Deal score: 76/100. 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 โ most consumer platforms do not support ECC. See our ECC RAM guide for platform compatibility details.
How does Samsung RAM compare to other brands?
Samsung has 133 modules tracked with an average customer rating of 4.6โ . This specific module is 15% 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.
Is 16GB of RAM enough for gaming in 2026?
8GB 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 8GB stick and a 2ร4GB kit?
A single 8GB stick runs in single-channel mode, using only one memory channel. A 2ร4GB 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 DDR4 RAM
OLOy
OLOy DDR4 RAM 8GB (1x8GB) 2666 MHz CL19 1.2V 288-Pin Desktop Gaming UDIMM (MD4U082619BGSA)
Samsung
M378A1K43CB2-CTD Memory Module (8 GB, 1 x 8 GB, DDR4, 2666 MHz, 288-pin DIMMM, Black, Green)
G.Skill
G.SKILL RipjawsV Series DDR4 RAM 8GB (1x8GB) 2666MT/s CL19-19-19-43 1.20V Intel AMD Desktop Computer Memory U-DIMM - Red (F4-2666C19S-8GVR)
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.