8GB DDR4 2666MHz PC4-21300 1.2V 1Rx8 288-Pin UDIMM Desktop RAM Memory Module M378A1K43DB2-CTD
Current price
$70.00
$8.75/GB
As of Apr 14, 2026 · Verify on Amazon · Price subject to change
vs avg $/GB
13% cheaper
Deal score
89/100
At $8.75/GB — 13% 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
- +13% below the overall DDR4 market average $/GB
- +Compatible with 4 CPU platforms
Limitations
- −Limited review data — only 4 Amazon reviews
- −Price near its tracked high of $70.00
- −Single-stick configuration — runs in single-channel mode unless paired with another stick
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 8GB DDR4 DIMM specifications.
8GB is below the 16GB minimum recommended for gaming in 2026
8GB handles basic office tasks — may slow with many tabs or large spreadsheets
8GB 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
Consider waiting
Price is near its tracked high of $70.00 — 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
$69.99
Current
$70.00
Tracked high
$70.00
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 | 8GB |
| Speed | 2666MHz |
| Form Factor | DIMM |
| Voltage | 1.2V |
| ASIN | B08FBPSLVT |
Compatible Platforms
Always verify with your motherboard's QVL before purchasing.
Platform Pairing Guide
How well 2666MHz performs on each platform — based on memory controller characteristics and manufacturer guidance.
| Platform | Benefit |
|---|---|
| AMD AM4 (Ryzen 1000–5000) | ✓ Good |
| Intel LGA1200 (10th/11th gen) | ★ Optimal |
| Intel LGA1700 DDR4 (12th–14th gen) | ✓ Good |
Platform guidance based on AMD and Intel official specifications and independent testing. Always verify compatibility with your specific motherboard's QVL.
DDR4 Price by Capacity
Average $/GB across all DDR4 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 8GBThis product | $9.97/GB |
| 16GB | $9.79/GB |
| 32GB | $9.33/GB |
| 64GB | $9.33/GB |
| 128GB | $8.96/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 DIMM in each tier today.
Current
8GB
$70.00
$8.75/GB
Prices are the lowest available in each tier from our daily database — verify on Amazon before purchasing. Only DDR4 DIMM modules compared.
Related pages
Frequently Asked Questions
Is the 8GB 2666MHz DDR4 compatible with my motherboard?
This module is compatible with Intel 11th Gen Core (LGA1200), Intel 12th / 13th / 14th Gen (LGA1700), Intel Core X / Skylake-X (LGA2066 / X299), AMD Ryzen 1000–5000 (AM4). 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 $8.75/GB, this module is 13% below the overall DDR4 market average $/GB across all capacities. Deal score: 89/100. Check the price history chart above to see how the price has moved recently. Prices are updated daily from Amazon.
What is 2666MHz 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. 2666MHz is a standard DDR4 speed tier.
How does this brand RAM compare to other brands?
Compare this module against other brands using the RAM comparison tool. Key factors to consider: price per GB, customer ratings, warranty coverage, and compatibility with your specific motherboard.
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