A-Tech Supermicro Certified 64GB DDR4 2666MHz CL19 4Rx4 LRDIMM server RAM
A 64 GB DDR4 2666 MHz CL19 quad-rank load-reduced ECC server module certified for Supermicro systems
- Total capacity64 GB
- Rated speedDDR4 2666 (PC4 21300)
- ChipsetMajor Brand Chipset
- CAS latencyCL19
- Rated voltage1.2 V
- Buffer typeLoad Reduced
- 64 GB capacity handles large workloads
- DDR4 2666 MHz speed moves data quickly
- CL19 latency keeps response tight
- 4Rx4 quad-rank LRDIMM maximises density
- ECC load-reduced design protects data integrity
64GB DDR4 2666 LRDIMM for servers
This 64GB DDR4 2666MHz CL19 LRDIMM module is built for Supermicro platforms that require ECC Load Reduced memory. It targets administrators expanding capacity in qualified systems. The 288-pin form factor fits standard DDR4 server slots. Buyers needing non-ECC or unbuffered DIMMs should look elsewhere.
64GB capacity with quad-rank headroom
The single module delivers 64GB using a 4Rx4 organisation, allowing high density per slot. It operates at 2666MHz with CL19 latency and 1.20V voltage. Systems that cannot address quad-rank LRDIMMs or that max out below 64GB per slot will not support this module.
DDR4 2666 interface practical limits
The PC4-21300 rating sets the peak transfer rate for this DDR4 generation. Load Reduced buffering reduces electrical load on the memory controller, enabling larger populations. Platforms limited to lower DDR4 speeds or to registered DIMMs without load reduction cannot use this memory.
How it compares
Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.
- Price $211.99
- Typical for this category: the median of 6,523 items is $188.99.
- Total capacity 64 GB
- Higher than about 70% of the 6,064 comparable items (median 32 GB).
- Price per GB $3.31 per GB
- Cheaper than about 87% 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 | SuperMicro |
| Product line | Supermicro Certified |
| Model name | MEM-DR464L-HL03-LR26 |
| Total capacity | 64 GB |
| Performance | |
| Rated speed | DDR4 2666 (PC4 21300) |
| Processor | |
| Chipset | Major Brand Chipset |
| Memory | |
| CAS latency | CL19 |
| ECC support | Yes |
| Buffer type | Load Reduced |
| Memory rank | 4Rx4 |
| Power | |
| Rated voltage | 1.2 V |
Questions about this item
Will this 2666MHz LRDIMM work alongside slower DDR4 modules I already have installed?
The module runs at 2666MHz CL19 1.20V; if your existing DDR4 DIMMs are slower the system will clock all sticks down to the lowest common speed and tightest timings.
How can I verify the ECC Load Reduced function is active after installation?
Check the BIOS memory information screen — it should report 64GB, 4Rx4 organisation, ECC enabled and a Load Reduced DIMM type at 2666MHz.
Does the package include a single 64GB stick or a kit, and are any extra parts required?
One 288-pin LRDIMM module is supplied; no additional components are needed, just an available DDR4 LRDIMM slot on a compatible Supermicro platform.
More in ECC Server RAM
Similar items
Kingston Technology Corp. KVR16E11K4/32 32GB (4x8GB) DDR3 1600 ECC Unbuffered server RAM
- 32 GB (4 × 8 GB)
- DDR3 1600
Kingston Technology Corp. KSM48E40BD8KI-32HA 32GB DDR5 4800 CL40 ECC Unbuffered server RAM
- 32 GB
- DDR5 4800
Brute Networks 16GB DDR4-2666 2Rx8 1.2V 288-Pin Server RAM
- 16 GB
- DDR4 2666
Kingston Technology Corp. KSM56E46BD8KM-48HM 48GB DDR5-5600 CL46 ECC Unbuffered 2Rx8 288-pin server RAM
- 48 GB
- DDR5 5600
Brute Networks P07640-H21 16GB DDR4-3200 1Rx4 Registered ECC server RAM
- 16 GB
- DDR4 3200





