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GraVT Micron 64GB DDR5-6400 ECC Registered RDIMM Server Memory

A 64GB DDR5-6400 module with ECC and registered buffering, built to keep demanding server and workstation workloads stable around the clock

$2,995.95*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Aug 01, 2026.Price and availability are subject to change.

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Overview

The GraVT Micron MTC40F2046S1RC64BD2T targets a specific buyer: someone building or expanding a server or workstation that needs both capacity and reliability. Each module carries 64GB of DDR5, enough to handle demanding enterprise workloads without stacking modules across every available slot. It runs at 6400 MHz (PC5-51200) with CL52 latency, placing it firmly in the fast tier of current registered DDR5. Manufactured by Micron, it is aimed at platforms where uptime is not negotiable.

Construction is where this module earns its keep. The ECC Registered (RDIMM) design combines Error-Correcting Code with registered buffering, a pairing meant to preserve data integrity and stability in environments that run continuously. The dual-rank 2Rx4 layout, using a x4 chip width, is engineered to maximize bandwidth and performance efficiency across memory accesses. Practically speaking, ownership hinges on one detail: the module requires a server motherboard that supports PC5-51200 registered memory, so verifying board compatibility before purchase is essential. For the right system, it slots in as a dense, error-protected foundation for serious computing.

Key Features

CAPACITY: 64 GB DDR5 memory module delivers ample capacity for demanding server and workstation workloads.

HIGH SPEED: Operates at 6400 MHz (PC5-51200) with CL52 latency for fast, responsive data throughput.

ECC REGISTERED (RDIMM): Error-Correcting Code with registered buffering ensures data integrity and stability in enterprise environments.

DUAL RANK, 2Rx4 CONFIGURATION: Dual Rank design with x4 chip width maximizes memory bandwidth and performance efficiency.

COMPATIBILITY: DDR5 RDIMM form factor designed for compatible server motherboards supporting PC5-51200 registered memory.

Specifications

Manufacturer
Micron
Part Number
MTC40F2046S1RC64BD2T
Capacity
64 GB
Memory Type
DDR5
Speed
6400 MHz (PC5-51200)
CAS Latency
CL52
Error Correction
ECC Registered (RDIMM)
Rank Configuration
Dual Rank, 2Rx4
Chip Width
x4
Form Factor
RDIMM

Frequently Asked Questions

No. This is an ECC Registered RDIMM designed for server motherboards that support PC5-51200 registered memory, not standard consumer desktop boards.
A single module provides 64GB of DDR5 capacity, aimed at demanding server and workstation workloads that need high density per slot.
It operates at 6400 MHz (PC5-51200) with CL52 latency, placing it in the fast tier of current registered DDR5 memory.
Error-Correcting Code corrects single-bit errors to protect data integrity, while registered buffering eases the load on the memory controller for greater stability.
The dual-rank design with x4 chip width is engineered to maximize memory bandwidth and performance efficiency across memory accesses.
The module is manufactured by Micron and carries the part number MTC40F2046S1RC64BD2T, though it is listed under the Generic brand.