OWC
OWC 128GB (2x64GB) DDR4 3200 PC4-25600 CL22 2Rx4 288-pin 1.2V ECC Registered RDIMM Memory RAM Module Upgrade Kit Compatible with Cisco UCS C4200
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
$996.98$7.79/GBAs of Jul 14, 2026 ยท Verify on Amazon ยท Price subject to change
$/GB vs DDR4 market avg
38% below avgDeal score
65/100
At $7.79/GB โ 38% below the DDR4 market average.
Consider waiting
Price is near its tracked high of $996.98 โ in the top 25% of its recorded range. Prices may fall.
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: B0CJLYZZB1) 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
- 38% below the overall DDR4 market average $/GB
Limitations
- No customer reviews available yet on Amazon
- Price near its tracked high of $996.98
- Requires ECC-compatible CPU and motherboard โ not supported on most consumer platforms
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 128GB (2x64) DDR4 ECC DIMM specifications.
ECC RAM is not supported on gaming platforms (consumer CPUs/boards)
ECC RAM requires server-grade hardware โ not compatible with standard office PCs
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
This is a desktop DIMM โ laptop upgrades require SO-DIMM modules. See Laptop RAM Prices for compatible options.
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
$996.98
24d Low
$389.99
24d High
$996.98
24d Avg
$764.86
Price Range
Tracked low
$389.99Current
$996.98Tracked high
$996.98Near tracked high
Z-Score Deviation
Overpriced
Deviation: 1.17ฯ
Consider waiting. Current pricing is higher than typical historical margins.
Specifications
Memory TypeDDR generation (DDR4 vs DDR5) ยท guide | DDR4 |
CapacityTotal kit memory size ยท guide | 128GB (2x64) |
| Kit Config | โ 2ร kit โ dual-channel ready |
CAS LatencyClock cycles response delay ยท guide | CL22 |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) | RDIMM |
ECCError-correcting capability ยท guide | Yes |
VoltageOperating voltage level | 1.2V |
ASIN | B0CJLYZZB1 |
Spotted a wrong price or spec? Report a data correction ยท How we verify data
Cheaper Alternatives
Same 128GB DDR4 โ lower $/GB than this product
74% cheaper/GB
58% cheaper/GB
Ranked by lowest $/GB. Same 128GB DDR4 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 |
| 16GB | $8.86/GB |
| 32GB | $8.31/GB |
| 64GB | $8.38/GB |
| 128GBThis product | $7.66/GB |
Also available from OWC
Same brand, different configurations
OWC
OWC 64GB (2x32GB) DDR4 3200MHz ECC UDIMM 288-pin Memory RAM
OWC
OWC 128GB (4x32GB) DDR4 3200MHz ECC UDIMM 288-pin Memory RAM
OWC
OWC 32GB (2x16GB) DDR4 3200MHz ECC UDIMM 288-pin Memory RAM
Related pages
Frequently Asked Questions
Is the OWC 128GB (2x64) DDR4 compatible with my motherboard?
Compatibility depends on your motherboard's supported memory type (DDR4), speed, and capacity. Check your motherboard manufacturer's QVL list to confirm this module is validated for your specific board.
Is this DDR4 module a good deal right now?
At $7.79/GB, this module is 38% below the overall DDR4 market average $/GB across all capacities. Check the price history chart above to see how the price has moved recently. Prices are updated daily from Amazon.
What is DDR4 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 38% 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 128GB of RAM enough for gaming in 2026?
128GB is more than enough for gaming in 2026. Most AAA titles use 16โ24GB alongside Discord and a browser. 128GB gives you headroom for streaming, recording, and running multiple applications simultaneously.
What is the difference between a single 128GB stick and a 2ร64GB kit?
This is already a 2ร64GB 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.
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A-Tech 128GB Kit (2x64GB) DDR4 2933MHz PC4-23400 ECC LRDIMM 4Rx4 (4DRx4) Quad Rank 1.2V Load Reduced DIMM 288-Pin Server RAM Memory Upgrade Modules (A-Tech Enterprise Series)
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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.