A-Tech
A-Tech 256GB Kit (4x64GB) DDR5 5600MHz PC5-44800 ECC RDIMM 2Rx4 (EC8 10x4) Dual Rank 1.1V ECC Registered DIMM 288-Pin Server RAM Memory Upgrade Modules (A-Tech Enterprise Series)
Enterprise ECC Stability
Validated by C.R. Vinoth Kumar · 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
$795.00$3.11/GBAs of May 30, 2026 · Verify on Amazon · Price subject to change
$/GB vs DDR5 market avg
70% below avgDeal score
65/100
At $3.11/GB — 70% below the DDR5 market average.
Buy on AmazonLoad alertsVerify Alternative Stores
Our systems refresh prices daily from Amazon.com to secure the absolute lowest USD market rate. You can cross-reference this RAM kit (ASIN: B0DMHC48WB) against alternative marketplaces like Newegg or Crucial before buying.
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 we earn from qualifying purchases.
At a Glance
Strengths
- 70% below the overall DDR5 market average $/GB
- Compatible with AMD Threadripper 7000 (TRX50) and AMD Threadripper PRO 7000 (sWRX9)
Limitations
- 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
- Availability unconfirmed — may be out of stock or delisted
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
Current
$795.00
3d Low
$795.00
3d High
$795.00
3d Avg
$795.00
Speed Ranking
Top 41%
5600MHz ranks in the top 41% of all DDR5 speeds tracked (1,188 modules).
XMP 3.0 / EXPO Profile Activation Required
This is a high-performance DDR5-5600 memory kit. It will NOT run at advertised speeds out of the box.
JEDEC Fallback Behavior
By default, all motherboards boot using safe **JEDEC standards** (typically **4800MT/s**). If you plug this RAM in and boot immediately, your system will downclock to this baseline, losing up to **10% - 20% CPU bandwidth**.
How to Enable XMP/EXPO
- 1.Reboot PC, tap
DelorF2to enter **BIOS**. - 2.Find memory settings and toggle **XMP / EXPO** to **Enabled**.
- 3.Save & Exit (press
F10). PC will reboot at 5600MHz.
Specifications
Memory TypeDDR generation (DDR4 vs DDR5) · guide | DDR5 |
CapacityTotal kit memory size · guide | 256GB (4x64) |
| Kit Config | ✓ 4× kit — dual-channel ready |
SpeedFrequency in MT/s or MHz · guide | 5600MHz |
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop) | RDIMM |
ECCError-correcting capability · guide | Yes |
VoltageOperating voltage level | 1.1V |
ASIN | B0DMHC48WB |
Spotted a wrong price or spec? Report a data correction · How we verify data
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 | $17.28/GB |
| 16GB | $18.93/GB |
| 32GB | $17.28/GB |
| 64GB | $13.71/GB |
| 128GB | $3.27/GB |
| 256GBThis product | $3.11/GB |
Also available from A-Tech
Same brand, different configurations
A-Tech
A-Tech 32GB DDR5 4800MHz PC5-38400 CL40 UDIMM 2Rx8 Dual Rank 1.1V Non-ECC Unbuffered DIMM 288-Pin Desktop PC/Computer RAM Memory Upgrade Module
A-Tech
A-Tech 64GB Kit (4x16GB) DDR5 5600MHz PC5-44800 CL46 UDIMM 1.1V Non-ECC Unbuffered DIMM 288-Pin Desktop PC/Computer RAM Memory Upgrade Modules
A-Tech
A-Tech 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 CL40 UDIMM 2Rx8 Dual Rank 1.1V Non-ECC Unbuffered DIMM 288-Pin Desktop PC/Computer RAM Memory Upgrade Modules
Related pages
Frequently Asked Questions
Is the A-Tech 256GB (4x64) 5600MHz 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 $3.11/GB, this module is 70% below the overall DDR5 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 5600MHz 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 A-Tech RAM compare to other brands?
A-Tech has 283 modules tracked with an average customer rating of 4.6★. This specific module is 70% below the overall DDR5 market average $/GB. Browse all A-Tech modules or use the comparison tool to see how it stacks up against Corsair, G.Skill, Kingston, and Crucial.
Is 256GB of RAM enough for gaming in 2026?
256GB is more than enough for gaming in 2026. Most AAA titles use 16–24GB alongside Discord and a browser. 256GB gives you headroom for streaming, recording, and running multiple applications simultaneously.
What is the difference between a single 256GB stick and a 2×128GB kit?
This is already a 4×64GB dual-channel kit — 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 10–30% compared to a single stick of the same total capacity.
Similar DDR5 RAM
G.Skill
Flare X5 Series DDR5 RAM (AMD EXPO) 256GB (4x64GB) 6000MT/s CL36-44-44-96 1.25V Desktop Computer Memory U-DIMM - Matte Black (F5-6000J3644D64GX4-FX5)
G.Skill
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
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 we earn from qualifying purchases. Prices are updated daily and may change on Amazon.