OWC
OWC 256GB (4x64GB) DDR5 4800 PC5-38400 CL40 2Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit Compatible with Dell PowerEdge XE9680
At $23.98/GB — DDR5 market rate.
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At a Glance
Strengths
- +Compatible with AMD Threadripper 7000 (TRX50) and AMD Threadripper PRO 7000 (sWRX9)
Limitations
- −137% above the overall DDR5 market average $/GB
- −No customer reviews available yet on Amazon
- −Limited price history — recently added to tracking, trends not yet available
- −Requires ECC-compatible CPU and motherboard — not supported on most consumer platforms
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 256GB (4x64) DDR5 ECC DIMM specifications.
ECC RAM is not supported on gaming platforms (consumer CPUs/boards)
ECC RAM requires server-grade hardware — not compatible with standard office PCs
ECC RAM protects long renders from silent data corruption — ideal for professional workstations
ECC RAM detects and corrects memory errors — required for data-critical servers and ZFS storage
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
Specifications
| Memory Type | DDR5 |
| Capacity | 256GB (4x64) |
| CAS Latency | CL40 |
| Form Factor | RDIMM |
| ECC | Yes |
| ASIN | B0CLYYY5P4 |
Compatible Platforms
Always verify with your motherboard's QVL before purchasing.
DDR5 Price by Capacity
Average $/GB across all DDR5 modules in the database
| Capacity | Avg $/GB |
|---|---|
| 8GB | $18.20/GB |
| 16GB | $18.92/GB |
| 32GB | $18.12/GB |
| 64GB | $20.45/GB |
| 128GB | $26.14/GB |
Also available from OWC
Same brand, different configurations
OWC
OWC 16GB DDR5 4800 PC5-38400 CL40 1Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Compatible with Dell Precision Workstation 5860 5860XL 7960 7960XL Towers and 7960 Rack
OWC
OWC 64GB (2x32GB) DDR5 4800 PC5-38400 CL40 2Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Compatible with Dell Precision Workstation 5860 5860XL 7960 7960XL Towers and 7960 Rack
OWC
OWC 64GB (2x32GB) DDR5 4800 PC5-38400 CL40 2Rx8 288-pin 1.1V ECC Unbuffered UDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
Related pages
Frequently Asked Questions
Is the OWC 256GB (4x64) DDR5 compatible with my motherboard?
This module is compatible with AMD Threadripper 7000 (TRX50), AMD Threadripper PRO 7000 (sWRX9). Always verify with your motherboard's QVL (Qualified Vendor List) before purchasing, as compatibility can vary by board revision.
Is this DDR5 module a good deal right now?
At $6,137.96 ($23.98/GB), this module is priced near the DDR5 market average. Check the price history chart above to see if prices have been trending up or down recently.
What is DDR5 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 — 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 82 modules tracked with an average customer rating of 4.4★. Browse all OWC modules or use the comparison tool to see how it stacks up against Corsair, G.Skill, Kingston, and Crucial.
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Trident Z5 Neo RGB Series DDR5 RAM (AMD EXPO) 256GB (4x64GB) 6000MT/s CL36-44-44-96 1.25V Desktop Computer Memory U-DIMM - Matte Black (F5-6000J3644D64GX4-TZ5NR)
OWC
OWC 256GB (4x64GB) DDR5 5200 PC5-41600 CL42 2Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers