SK Hynix
Hynix HMA42GR7MFR4N-TF DDR4-2133 16GB/2Gx72 ECC/REG CL13 Hynix Chip Server Memory
Current price
$144.99
$9.06/GB
As of Apr 14, 2026 · Verify on Amazon · Price subject to change
vs avg $/GB
10% cheaper
Deal score
78/100
At $9.06/GB — 10% 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
- +10% below the overall DDR4 market average $/GB
Limitations
- −Below-average customer rating (3.8★)
- −Price near its tracked high of $144.99
- −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 $144.99 — 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
$144.98
Current
$144.99
Tracked high
$144.99
Near tracked high
Specifications
| Memory Type | DDR4 |
| Capacity | 16GB |
| CAS Latency | CL13 |
| Form Factor | RDIMM |
| ECC | Yes |
| ASIN | B0100Z4IX4 |
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 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 $9.06/GB, this module is 10% below the overall DDR4 market average $/GB across all capacities. Deal score: 78/100. Check the price history chart above to see how the price has moved recently. Prices are updated daily from Amazon.
What is DDR4 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★. This specific module is 10% below the overall DDR4 market average $/GB. Browse all SK Hynix modules or use the comparison tool to see how it stacks up against Corsair, G.Skill, Kingston, and Crucial.
Similar DDR4 RAM
A-Tech
A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module
TEAMGROUP
TEAMGROUP Elite DDR4 16GB Kit (2 x 8GB) 3200MHz (PC4-25600) CL22 Unbuffered Non-ECC 1.2V UDIMM 288 Pin PC Computer Desktop Memory Module Ram Upgrade - TED416G3200C22DC01
TEAMGROUP
Elite DDR4 16GB Single (1 x 16GB) 3200MHz (PC4-25600) CL22 Unbuffered Non-ECC 1.2V UDIMM 288 Pin PC Computer Desktop Memory Module Ram Upgrade - TED416G3200C2201