The Samsung MDRR644QDBC2-3L000 is a 64GB DDR5 ECC Registered DIMM (RDIMM) rated at 6400 MT/s, positioned for high-volume procurement into server builds, virtualization clusters, cloud infrastructure rollouts, and HPC deployments. For resellers, system integrators, and IT procurement teams, this SKU represents a mainstream enterprise density point: sufficient per-module capacity for most compute nodes while remaining price-competitive for batch deployment across multi-server projects.
Note that this is a DDR5 registered module only: it is not backward compatible with DDR4 or UDIMM-based platforms. Before placing bulk orders, we advise verifying your server platform’s qualified vendor list (QVL) and BIOS-level support for 6400 MT/s operation, as many host boards default to lower data rates.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | MDRR644QDBC2-3L000 |
| Brand | Samsung |
| Memory Type | DDR5 ECC RDIMM (Registered DIMM) |
| Capacity | 64GB |
| Data Rate | 6400 MT/s (platform dependent; verify QVL) |
| Speed Grade | PC5-51200R |
| Rank Configuration | 2Rx4 (dual-rank, x4 DRAM organization) |
| Error Correction | ECC Supported (requires ECC-capable platform) |
| CAS Latency | CL52 |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | x4-based DRAM |
| Memory Bandwidth | 51.2 GB/s |
| Operating Temperature | 0°C to 95°C |
| Compliance | JEDEC DDR5 Standard |
| Applications | Enterprise Servers, Data Centers, Cloud Computing, Virtualization, HPC |
Supply & Sourcing Information
We stock this part in volume with batch/lot consistency available for multi-server deployments, ensuring that modules shipped within a single order share the same part number, speed grade, and rank configuration. Lot-matched allocation can be arranged for larger projects — please specify this requirement when submitting your inquiry.
All units ship as original Samsung product with manufacturer warranty support. RMA handling is managed through our wholesale channel with defined turnaround windows; defective units within the RMA period are cross-shipped or credited per our terms for registered business buyers.
The product carries CE, FCC, and RoHS certifications, supporting export to major markets. Standard export documentation can be provided for customs clearance and compliance verification.
Standard orders are typically dispatched within a short lead time from stock; for volume commitments exceeding on-hand inventory, delivery schedules are confirmed at quotation. RDIMMs cannot be mixed with UDIMMs or LRDIMMs on the same channel, and channels should be populated symmetrically per your server vendor’s memory population guidelines — we recommend communicating this to downstream customers in your own documentation.
Resellers, system integrators, and data center procurement teams can request a wholesale quote for current stock levels, tiered pricing, and lot-matched allocation.
Wholesale & Procurement Notes
- MOQ negotiable — trial quantities available for evaluation and platform qualification.
- Tiered volume pricing available; contact us to request a quote for project-sized orders.
- Typical lead time: 1–3 business days for in-stock items; extended schedules confirmed for large batch orders.
- Packing & shipping: anti-static bulk or retail tray packing, international express or freight forwarding, with full export documentation.
- RMA window: 12-month warranty coverage with structured RMA processing for business accounts.
