Current price
$39.70$4.96/GBAs of 28 Aug 2026, 06:40 UTC ยท Verify on Amazon ยท Price subject to change
Good time to buy
Price is near its tracked low of $39.70 โ in the bottom 20% of its recorded range. ยท 37% below 8GB DDR4 peer $/GB
As an Amazon Associate I earn from qualifying purchases. Prices as of 28 Aug 2026, 06:40 UTC. 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.
Kingston
Kingston Technology 8GB DDR4 2133MHz SODIMM Memory for Select Acer, Dell, HP/Compaq Laptops (KCP421SD8/8) (Technology SO)
This Kingston 8GB 2133MHz DDR4 SO-DIMM laptop kit is $39.70 ($4.96/GB), near its tracked low. In stock on Amazon. Fits Laptop โ DDR4 SO-DIMM. Technology SO variant.
At a Glance
Strengths
- 37% below the 8GB DDR4 peer median $/GB
- Price near its tracked low of $39.70
- Limited Lifetime Warranty from Kingston
Limitations
- Limited review data โ only 25 Amazon reviews
- Single-stick configuration โ runs in single-channel mode unless paired with another stick
All points are derived from price data, customer ratings, and product specifications โ not editorial opinion. Updated daily.
Specifications
Catalog data as of 28 Aug 2026, 06:40 UTC
Memory TypeDDR generation (DDR4 vs DDR5) ยท guide | DDR4 |
CapacityTotal kit memory size ยท guide | 8GB |
| 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 | 2133MHz |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) ยท guide | SO-DIMM |
ASIN | B0187IKCY0 |
Spotted a wrong price or spec? Report a data correction ยท How we verify data
Specs & prices refreshed 28 Aug 2026, 06:40 UTC. Verify on Amazon at checkout.
Price History
Updated daily โ track price trends over time
Current
$39.70
103d Low
$39.70
103d High
$64.79
103d Avg
$59.79
Deal score
94/100
vs this kit's history
Current price is 2.4ฯ below the tracked average of $59.79 - historically favorable vs its own chart.
Frequently Asked Questions
Is the Kingston 8GB 2133MHz DDR4 compatible with my motherboard?
This module is compatible with Laptop โ 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?
Yes โ Price is near its tracked low of $39.70 โ in the bottom 20% of its recorded range. At $39.70 ($4.96/GB), about 37% below the 8GB DDR4 peer median. Prices are updated daily from Amazon.
What is 2133MHz RAM used for?
DDR4 RAM is used in Intel LGA1200/LGA1700 and AMD AM4 (Ryzen 1000-5000) systems. It offers excellent value for existing platforms. 2133MHz is a standard DDR4 speed tier.
How does Kingston RAM compare to other brands?
Kingston has 191 modules tracked with an average customer rating of 4.5โ . This specific module is 37% below the 8GB DDR4 peer median $/GB. Browse all Kingston 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 matched multi-stick kit?
A single 8GB stick runs in single-channel mode. A matched 2ร4GB kit of the same total capacity enables dual-channel mode, doubling memory bandwidth and typically improving real-world performance by 10โ30%. For best results, buy RAM in matched kits.
Similar DDR4 RAM
Samsung
Samsung 8GB DDR4 3200MHz PC4-25600 (PC4-3200AA) CL22 SODIMM 1Rx8 Single Rank 1.2V 260-Pin Laptop RAM Memory
Gigastone
ใDDR4 RAM Laptop Onlyใ GIGASTONE 8GB DDR4 2666MHz (2400MHz or 2133MHz) PC4-21300 (PC4-19200/17000) CL19 1.2V SODIMM 260 Pin Unbuffered Non ECC High Performance Notebook Memory Upgrade
Crucial
Crucial 8GB DDR4 RAM 3200MHz (PC4-25600), Downclockable to 2933/2666MHz Laptop Memory, SODIMM 260-Pin CL22, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT8G4SFRA32A
Compatibility & buying details
Use cases, platforms, motherboard notes, upgrade math, and analyst notes
Compatibility & buying details
Use cases, platforms, motherboard notes, upgrade math, and analyst notes
Is This RAM Right for You?
Based on 8GB DDR4 SO-DIMM specifications.
Laptop RAM โ suitable for gaming laptops with compatible slots
8GB handles basic office tasks โ may slow with many tabs open
8GB is insufficient for video editing or 3D rendering workloads
SO-DIMM laptop RAM is not used in servers โ servers require DIMM or RDIMM modules
SO-DIMM form factor โ correct type for laptop memory upgrades. Verify your laptop has an accessible slot.
Verdicts based on capacity, form factor, and ECC specifications โ not editorial opinion. Capacity recommendations reflect 2026 software requirements.
Limited Entry-Level Capacity
Validated by C.R. Vinoth Kumar ยท 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.
Price Range
Tracked low
$39.70Current
$39.70Tracked high
$64.79โ Near tracked low
Speed Ranking
Top 92%
2133MHz ranks in the top 92% of all DDR4 speeds tracked (2,032 modules).
About Kingston
4.5โ
avg rating
191
products tracked
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 | $8.10/GB |
| 16GB | $7.81/GB |
| 32GB | $7.44/GB |
| 64GB | $7.81/GB |
| 128GB | $7.42/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 DDR4 SO-DIMM in each tier today.
Current
8GB
$39.70$4.96/GBPrices are the lowest available in each tier from our daily database โ verify on Amazon before purchasing. Only DDR4 SO-DIMM modules compared.
Also available from Kingston
Same brand, different configurations
Kingston
Kingston ValueRAM 8GB 3200MT/s DDR4 Non-ECC CL22 SODIMM 1Rx8 1.2V KVR32S22S8/8 Laptop Memory
Kingston
Kingston ValueRAM 16GB 3200MT/s DDR4 Non-ECC CL22 SODIMM 1Rx8 1.2V KVR32S22S8/16 Laptop Memory
Related pages
Amazon prices on this page. ASIN B0187IKCY0 may also appear on Newegg - we do not show competitor prices.
Reviewed by C.R. Vinoth Kumar
Editor & FounderVinoth is an InfoSec consultant, independent technical blogger, and the developer of RAM Prices, with 12+ years in IT. He reviews buying guides and maintains the site's automated checks for price per GB, specification confidence, availability, and AMD/Intel platform compatibility. See the methodology for the exact ranking rules and limitations.
As an Amazon Associate I earn from qualifying purchases. Prices as of 28 Aug 2026, 06:40 UTC. 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.