NEMIX RAM 128GB DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM server RAM
128 GB DDR5 registered ECC RDIMM running at 4800 MHz with CL40 latency and 1.1 V for Dell PowerEdge R7625 servers
- Total capacity128 GB
- Rated speedDDR5 4800 (PC5 38400)
- ChipsetMajor OEM Samsung, Micron, Hynix
- CAS latencyCL40
- Rated voltage1.1 V
- Buffer typeRegistered
- 128 GB capacity supports large memory workloads
- DDR5 4800 speed delivers high data throughput
- CL40 latency at 1.1 V balances timing with efficiency
- 4Rx4 registered ECC design improves signal integrity and error correction
- Validated for Dell PowerEdge R7625 server compatibility
NEMIX RAM 128GB DDR5 4800 Server Module
This NEMIX RAM module provides 128GB of DDR5 memory rated at 4800 MT/s with a CL40 latency and 1.1V operation. It uses a 288-pin RDIMM form factor with a 4Rx4 rank configuration and on-board ECC. The registered buffer helps maintain signal integrity across the memory bus. It is built with major OEM DRAM chips from Samsung, Micron or Hynix.
Suited for Dell PowerEdge R7625 capacity upgrades
This module targets administrators expanding memory in a Dell PowerEdge R7625 rack server where the qualified part number MR38400-744K1 is required. The registered ECC design matches the platform's requirements for error correction and command buffering. Builders using consumer motherboards, laptops or non-registered DIMM slots cannot use this memory. Systems limited to lower densities or different rank structures should look elsewhere.
128GB 4Rx4 density decides fit
The single most decisive specification is the 128GB capacity organised as a single 4Rx4 rank. The memory controller and BIOS must explicitly support this density and rank geometry for the module to initialise. Verify the server's qualified vendor list and maximum supported rank per channel before purchase. If the platform only accepts 1Rx4, 2Rx4 or lower capacities, this DIMM will not function.
How it compares
Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.
- Price $3,917.99
- Pricier than about 90% of the 6,523 comparable items (median $188.99).
- Total capacity 128 GB
- Higher than about 90% of the 6,064 comparable items (median 32 GB).
- Price per GB $30.61 per GB
- Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).
New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.
Specifications
| Product | |
|---|---|
| Brand name | NEMIX RAM |
| Product line | Dell Series Server Memory |
| Model name | Dell Compatible DDR5 ECC Registered RDIMM |
| Part number | MR38400-744K1 |
| Total capacity | 128 GB |
| Product type | 288-Pin DDR5 RDIMM |
| Performance | |
| Rated speed | DDR5 4800 (PC5 38400) |
| Processor | |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Memory | |
| CAS latency | CL40 |
| ECC support | Yes |
| Buffer type | Registered |
| Memory rank | 4Rx4 |
| Heat spreader | No |
| Power | |
| Rated voltage | 1.1 V |
Questions about this item
Will this 4800 MHz DDR5 RDIMM run at full speed alongside my existing 4800 MHz DDR5 modules in the PowerEdge R7625?
Yes, when installed in the same Dell PowerEdge R7625 the module operates at DDR5 4800 (PC5-38400) with CL40 latency and 1.10 V, matching the platform's native memory speed.
How can I confirm the 128 GB ECC registered module is detected and correcting errors after installation?
Check the system BIOS or iDRAC interface — it will show 128 GB per DIMM, report ECC as active, and log any corrected errors in the system event log.
Does the single 288-pin RDIMM ship with a heat spreader or any extra cables I need to buy?
The module has no heat spreader and requires no cables; it is a bare 288-pin DDR5 RDIMM ready for direct insertion into the server memory slots.
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