Detailed Specifications
Overview
The Samsung M391A2K43BB1-CTD is a 16GB DDR4 ECC unbuffered memory module designed for compatible workstation and server platforms that support ECC UDIMM memory. It operates at 2666MT/s, uses a 288-pin DIMM form factor, and runs at 1.2V.
Key Features
- 16GB memory capacity
- DDR4-2666 data transfer rate
- ECC error detection and correction support
- Unbuffered DIMM design
- 288-pin desktop/server DIMM form factor
- Dual-rank 2Rx8 organization
- 1.2V operating voltage
- CL19 timing at DDR4-2666
Technical Specifications
| Brand | Samsung |
| Part Number / MPN | M391A2K43BB1-CTD |
| Product Type | DDR4 ECC Unbuffered Memory Module |
| Capacity | 16GB |
| Memory Technology | DDR4 SDRAM |
| Memory Speed | 2666MT/s |
| Memory Standard | DDR4-2666 / PC4-21300 |
| CAS Latency | CL19 |
| Voltage | 1.2V |
| Form Factor | 288-pin DIMM |
| ECC Support | Yes |
| Registered / Buffered | Unbuffered (UDIMM) |
| Rank Organization | 2Rx8, dual rank |
| Module Configuration | 2048M x 72 |
| Module Height | 31.25mm |
Applications
- Compatible workstations and servers
- Systems requiring ECC unbuffered DDR4 memory
- Memory capacity upgrades for supported platforms
- Professional computing workloads
Compatibility and Installation
Confirm that the motherboard and processor support 16GB DDR4 ECC unbuffered DIMMs. ECC UDIMM memory is not interchangeable with registered ECC RDIMM memory in systems that require a specific memory type. Check the platform's supported memory speeds and configurations before installation.
Frequently Asked Questions
What is the memory capacity?
This module provides 16GB of DDR4 memory.
Does it support ECC?
Yes. It is an ECC unbuffered DIMM.
What is the operating speed?
It is rated for DDR4-2666, or PC4-21300.
Is this registered memory?
No. This is unbuffered ECC UDIMM memory.
Will it work in any DDR4 motherboard?
No. The motherboard and processor must support ECC UDIMM memory and the module's capacity and organization.
DC Supplies Product Note
Please verify the exact MPN and system memory requirements before ordering. ECC support and compatibility depend on the motherboard and processor.
