SK Hynix
SK hynix 16GB/2Gx4 DDR4 PC4-21300 2666MHz /2Gx4 ECC/REG CL19 Server Memory Model HMA82GR7CJR4N-VK
At $11.87/GB — DDR4 market rate.
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At a Glance
Limitations
- −17% above the overall DDR4 market average $/GB
- −No customer reviews available yet on Amazon
- −Price near its tracked high of $189.99
- −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 16GB 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
Consider waiting
Price is near its tracked high of $189.99 — in the top 25% of its recorded range. Prices may fall.
Based on tracked price history for this ASIN. More data points accumulate over time — check back as history grows.
Price Range
Tracked low
$174.00
Current
$189.99
Tracked high
$189.99
Near tracked high
Speed Ranking
Top 46%
2666MHz ranks in the top 46% of all DDR4 speeds tracked (1,762 modules).
Specifications
| Memory Type | DDR4 |
| Capacity | 16GB |
| Speed | 2666MHz |
| CAS Latency | CL19 |
| Form Factor | RDIMM |
| ECC | Yes |
| ASIN | B089G8QXF4 |
DDR4 Price by Capacity
Average $/GB across all DDR4 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 8GB | $9.97/GB |
| 16GBThis product | $9.79/GB |
| 32GB | $9.33/GB |
| 64GB | $9.33/GB |
| 128GB | $8.96/GB |
Also available from SK Hynix
Same brand, different configurations
SK Hynix
Hynix 8GB PC4-21300 DDR4-2666MHz 260-Pin SODIMM 1.2V Single Rank Memory Module HMA81GS6CJR8N-VK
SK Hynix
16GB DDR4 3200MHz (PC4-3200AA) PC4-25600 UDIMM Desktop RAM – 288-Pin 1.2V CL22 Non-ECC Unbuffered DIMM Memory Module Upgrade
SK Hynix
A-Tech 8GB DDR4 3200 MHz UDIMM PC4-25600 (PC4-3200AA) CL22 DIMM Non-ECC Desktop RAM Memory Module
Frequently Asked Questions
Is the SK Hynix 16GB 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 $189.99 ($11.87/GB), this module is priced near the DDR4 market average. Check the price history chart above to see if prices have been trending up or down recently.
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 SK Hynix RAM compare to other brands?
SK Hynix has 197 modules tracked with an average customer rating of 4.5★. Browse all SK Hynix modules or use the comparison tool to see how it stacks up against Corsair, G.Skill, Kingston, and Crucial.
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