SK Hynix
Laptop Memory Module HMA851S6DJR6N-XN Compatible Replacement Spare Part for SK Hynix HMA851S6DJR6N 4GB 1RX16 DDR4 SO-DIMM PC4-25600 3200MHz 260-Pin Non-ECC CL22 1.2V
At $11.69/GB — DDR4 market rate.
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At a Glance
Strengths
- +4.6★ average customer rating (114 reviews)
Limitations
- −16% above the overall DDR4 market average $/GB
- −Price near its tracked high of $46.74
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 4GB DDR4 ECC SO-DIMM specifications.
Laptop RAM — suitable for gaming laptops with compatible slots
4GB is below the recommended minimum for comfortable everyday use
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
SO-DIMM form factor — correct type for laptop memory upgrades. Verify your laptop has an accessible slot.
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 $46.74 — 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
$46.73
Current
$46.74
Tracked high
$46.74
Near tracked high
Speed Ranking
Top 7%
3200MHz ranks in the top 7% of all DDR4 speeds tracked (1,762 modules).
Specifications
| Memory Type | DDR4 |
| Capacity | 4GB |
| Speed | 3200MHz |
| CAS Latency | CL22 |
| Form Factor | SO-DIMM |
| ECC | Yes |
| Voltage | 1.2V |
| ASIN | B08ZYY72C8 |
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 |
|---|---|
| 8GB | $9.97/GB |
| 16GB | $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
32GB KIT (2x16GB) DDR4 2666MHz (PC4-2666V) PC4-21300 SODIMM Laptop RAM – 260-Pin 1.2V CL19 Non-ECC Unbuffered Memory Module for Laptop, Notebook, Mini PC, All-in-One
SK Hynix
SK Hynix 8GB SODIMM DDR4 3200 PC4 1Rx16 HMAA1GS6CJR6N-XN SO-DIMM Laptop RAM Memory for Dell HP Lenovo and Other Systems
SK Hynix
DDR4 8GB (1x8GB) 3200MHz CL22 1.2V SODIMM Laptop Ram Memory SK Hynix Chip (KD48GS880-32N220A)
Frequently Asked Questions
Is the SK Hynix 4GB 3200MHz DDR4 compatible with my motherboard?
This module is compatible with Laptop — DDR4 SO-DIMM. 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 $46.74 ($11.69/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 3200MHz 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.
Similar DDR4 RAM
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4GB DDR4 3200MHz PC4-25600 1.2V 1R x 16 SODIMM Laptop RAM Memory Module M471A5244CB0