SK Hynix
4GB 2X2GB RAM PC2-6400U 800MHZ 2RX8 DDR2 NON-ECC Unbuffered For DESKTOP Memory
Limited Entry-Level Capacity
Validated by C.R. Vinoth Kumar · Founder & Senior Editor
8GB of total memory is extremely marginal in 2026. Windows 11 uses 3-4GB at idle, leaving very little headroom for multitasking or gaming. We highly recommend upgrading to at least 16GB, or 32GB to prevent page-file stutters.
Current price
$27.00$6.75/GBAs of Jul 14, 2026 · Verify on Amazon · Price subject to change
$/GB vs DDR2 market avg
46% below avgDeal score
94/100
At $6.75/GB — 46% below the DDR2 market average.
Buy on AmazonLoad alertsAlso sold elsewhere
Prices on this page are Amazon.com prices from our Creators API refresh (as of the last update). You can look up this kit (ASIN: B00HNZ891M) on other retailers such as Newegg or Crucial — we do not display their prices here. Always verify the checkout price on Amazon before purchasing.
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 I earn from qualifying purchases.
At a Glance
Strengths
- 46% below the overall DDR2 market average $/GB
Limitations
- Limited review data — only 31 Amazon reviews
- Limited price history — recently added to tracking, trends not yet available
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 (2x2) DDR2 DIMM specifications.
4GB is below the 16GB minimum recommended for gaming in 2026
4GB is below the recommended minimum for comfortable everyday use
4GB is insufficient for video editing or 3D rendering workloads
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
Current
$27.00
57d Low
$27.00
57d High
$27.00
57d Avg
$27.00
Speed Ranking
Top 4%
800MHz ranks in the top 4% of all DDR2 speeds tracked (29 modules).
Specifications
Memory TypeDDR generation (DDR4 vs DDR5) · guide | DDR2 |
CapacityTotal kit memory size · guide | 4GB (2x2) |
| Kit Config | ✓ 2× kit — dual-channel ready |
SpeedFrequency in MT/s or MHz · guide | 800MHz |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) | DIMM |
ASIN | B00HNZ891M |
Spotted a wrong price or spec? Report a data correction · How we verify data
Cheaper Alternatives
Same 4GB DDR2 — lower $/GB than this product
Dolgix
DOLGIX 4GB (2x2GB) DDR2 800MHz DIMM PC2-6400 1.8V 240-Pin Desktop RAM Memory Upgrade Kit44% cheaper/GB
37% cheaper/GB
PUSOKEI
4GB Large Capacity DDR2 Memory Module for Desktop Computer, 240PIN 800MHz Fast Data RAM DDR2 4GB PC2-6400 Bandwidth, Plug and Play18% cheaper/GB
Ranked by lowest $/GB. Same 4GB DDR2 DIMM only. Prices updated daily.
DDR2 Price by Capacity
Average $/GB across all DDR2 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 4GBThis product | $8.18/GB |
| 8GB | $6.13/GB |
Upgrade Cost Calculator
How much more (or less) would you spend to step up or down in capacity? Prices shown are the cheapest available DDR2 DIMM in each tier today.
Current
4GB
$27.00$6.75/GBPrices are the lowest available in each tier from our daily database — verify on Amazon before purchasing. Only DDR2 DIMM modules compared.
Also available from SK Hynix
Same brand, different configurations
Frequently Asked Questions
Is the SK Hynix 4GB (2x2) 800MHz DDR2 compatible with my motherboard?
Compatibility depends on your motherboard's supported memory type (DDR2), speed, and capacity. Check your motherboard manufacturer's QVL list to confirm this module is validated for your specific board.
Is this DDR2 module a good deal right now?
At $6.75/GB, this module is 46% below the overall DDR2 market average $/GB across all capacities. Deal score: 94/100. Check the price history chart above to see how the price has moved recently. Prices are updated daily from Amazon.
What is 800MHz RAM used for?
This RAM module is designed for desktop PC systems. Check your system's specifications to confirm compatibility before purchasing.
How does SK Hynix RAM compare to other brands?
SK Hynix has 91 modules tracked with an average customer rating of 4.4★. This specific module is 46% below the overall DDR2 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.
Is 16GB of RAM enough for gaming in 2026?
4GB is below the 16GB minimum recommended for gaming in 2026. Most modern AAA titles require 12–16GB. Consider upgrading to at least 16GB for a smooth gaming experience.
What is the difference between a single 4GB stick and a 2×2GB kit?
This is already a 2×2GB dual-channel kit — the correct configuration for maximum performance. Dual-channel mode doubles the memory bandwidth by using both memory channels simultaneously, improving performance in games and applications by 10–30% compared to a single stick of the same total capacity.
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NANYA
NANYA NT2GT64U8HD0BY-AD 4GB 2 x 2GB PC2-6400U DDR2 800 NonECC Desktop Memory Kit
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A-Tech 4GB (2x2GB) DDR2 1066MHz / 1067MHz DIMM PC2-8500 UDIMM Non-ECC 1.8V CL7 240-Pin Desktop Computer RAM Memory Upgrade Kit
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 I earn from qualifying purchases. Prices updated daily. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.