OWC
OWC 16GB (2X8GB) DDR4 RAM Compatible with Synology DiskStation DS723+ and DS923+ NAS System 2666MHz PC4-21300 CL19 ECC Unbuffered SODIMM 2Rx8 1.2V Memory Upgrade
Available Styles / Variations:
Enterprise ECC Stability
Validated by C.R. Vinoth Kumar ยท Founder & Senior Editor
This is an Error Correcting Code (ECC) server module designed to prevent silent data corruption in 24/7 server environments (like TrueNAS/ZFS or enterprise workloads). Ensure your motherboard and CPU officially support ECC before purchasing.
Current price
$149.83$9.36/GBAs of Jul 14, 2026 ยท Verify on Amazon ยท Price subject to change
$/GB vs DDR4 market avg
25% below avgDeal score
97/100
At $9.36/GB โ 25% below the DDR4 market average.
Good time to buy
Price is near its tracked low of $149.83 โ in the bottom 20% of its recorded range.
Also 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: B0CCF5CN4Y) on other retailers such as Newegg or Crucial โ 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
- 25% below the overall DDR4 market average $/GB
- 4.7โ rating across 280 Amazon reviews
- Price near its tracked low of $149.83
All points are derived from price data, customer ratings, and product specifications โ not editorial opinion. Updated daily.
Is This RAM Right for You?
Based on 16GB (2x8) DDR4 ECC SO-DIMM specifications.
Laptop RAM โ suitable for gaming laptops with compatible slots
16GB handles office apps, video calls, and multiple browser tabs comfortably
ECC RAM protects long renders from silent data corruption โ ideal for professional workstations
ECC RAM detects and corrects memory errors โ required for data-critical servers and ZFS storage
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.
Price History
Updated daily โ track price trends over time
Current
$149.83
57d Low
$149.83
57d High
$171.12
57d Avg
$164.77
Price Range
Tracked low
$149.83Current
$149.83Tracked high
$171.12โ Near tracked low
Speed Ranking
Top 47%
2666MHz ranks in the top 47% of all DDR4 speeds tracked (1,856 modules).
Z-Score Deviation
Great Deal (Underpriced)
Deviation: -1.53ฯ
Highly favorable pricing! The current cost is significantly below normal market margins.
Specifications
Memory TypeDDR generation (DDR4 vs DDR5) ยท guide | DDR4 |
CapacityTotal kit memory size ยท guide | 16GB (2x8) |
| Kit Config | โ 2ร kit โ dual-channel ready |
SpeedFrequency in MT/s or MHz ยท guide | 2666MHz |
CAS LatencyClock cycles response delay ยท guide | CL19 |
True LatencyAbsolute nanosecond latency | 14.25 ns(High latency)= (19 ร 2000) รท 2666 |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) ยท guide | SO-DIMM |
ECCError-correcting capability ยท guide | Yes |
VoltageOperating voltage level | 1.2V |
ASIN | B0CCF5CN4Y |
Spotted a wrong price or spec? Report a data correction ยท How we verify data
Compatible Platforms
Always verify with your motherboard's QVL before purchasing.
Cheaper Alternatives
Same 16GB DDR4 โ lower $/GB than this product
Gigastone
ใDDR4 RAM Laptop Onlyใ GIGASTONE 16GB DDR4 2666MHz (2400MHz or 2133MHz) PC4-21300 (PC4-19200/17000) CL19 1.2V SODIMM 260 Pin Unbuffered Non ECC High Performance Notebook Memory Upgrade25% cheaper/GB
17% cheaper/GB
Gigastone
ใDDR4 RAM Laptop Onlyใ GIGASTONE 16GB Kit (2x8GB) DDR4 3200MHz (2933MHz or 2666MHz) PC4-25600 (PC4-23400/21300) CL22 1.2V SODIMM 260 Pin Unbuffered Non ECC High Performance Notebook Memory Upgrade17% cheaper/GB
Ranked by lowest $/GB. Same 16GB DDR4 SO-DIMM only. Prices updated daily.
DDR4 Price by Capacity
Average $/GB across all DDR4 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 8GB | $9.20/GB |
| 16GBThis product | $8.86/GB |
| 32GB | $8.31/GB |
| 64GB | $8.38/GB |
| 128GB | $7.66/GB |
Also available from OWC
Same brand, different configurations
OWC
OWC 16GB DDR4 RAM Compatible with Synology DiskStation DS723+ and DS923+ NAS System 2666MHz PC4-21300 CL19 ECC Unbuffered SODIMM 2Rx8 1.2V Memory Upgrade
OWC
OWC 32GB (2X16GB) DDR4 RAM Compatible with Synology DiskStation DS723+ and DS923+ NAS System 2666MHz PC4-21300 CL19 ECC Unbuffered SODIMM 2Rx8 1.2V Memory Upgrade
OWC
OWC 32GB (2x16GB) DDR4 2400MHz Non-ECC SODIMM 260-pin Memory RAM
Related pages
Frequently Asked Questions
Is the OWC 16GB (2x8) 2666MHz 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?
At $9.36/GB, this module is 25% below the overall DDR4 market average $/GB across all capacities. Deal score: 97/100. 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?
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 โ most consumer platforms do not support ECC. See our ECC RAM guide for platform compatibility details.
How does OWC RAM compare to other brands?
OWC has 99 modules tracked with an average customer rating of 4.4โ . This specific module is 25% below the overall DDR4 market average $/GB. Browse all OWC 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?
16GB is the minimum recommended for gaming in 2026. Most AAA titles use 12โ16GB alongside Discord and a browser. 32GB is the sweet spot if you also stream, record, or run VMs.
What is the difference between a single 16GB stick and a 2ร8GB kit?
This is already a 2ร8GB dual-channel kit โ 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 10โ30% compared to a single stick of the same total capacity.
Similar DDR4 RAM
A-Tech
A-Tech 16GB (2x8GB) DDR4 2133 MHz SODIMM PC4-17000 (PC4-2133P) CL15 Non-ECC Laptop RAM Memory Modules
Crucial
Crucial 16GB DDR4 RAM Kit (2x8GB), 3200MHz (PC4-25600), Downclockable to 2933/2666MHz Laptop Memory SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT2K8G4SFRA32A
SP Silicon Power
Silicon Power Laptop Memory DDR4-2133 (PC4-17000) 2 x 8GB (16GB) 260pin 1.2V CL15 SP016GBSFU213B22
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.