Your Browsing History
Meet Your Seller
Samsung - M393A4K40CB2-CTD - Samsung 32GB DDR4 SDRAM Memory Module - 32 GB (1 x 32 GB) - DDR4-2666/PC4-21300 DDR4 SDRAM
- DDR3 1066 (PC3 8500)
- Registered
+
+
Overview
Specs
Reviews
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
Proven DRAM Module Solution in the Global Market Samsung's memory modules are designed for a wide range of applications to deliver the best performance with low power requirements.
Product Type: RAM
Module CAS Latency: CL19
Device Supported: Server
Device Supported: Desktop
PC Error Checking: ECC Number of
Pins: 288-pin
Signal Processing: Registered
Product Type: RAM
Module CAS Latency: CL19
Device Supported: Server
Device Supported: Desktop
PC Error Checking: ECC Manufacturer
Part Number: M393A4K40CB2-CTD Number of
Modules: 1 x 32 GB Number of
Pins: 288-pin
Signal Processing: Registered
Form Factor: DIMM
Memory Speed: 2666 MHz
Form Factor: DIMM
Manufacturer: Samsung
Memory Speed: 2666 MHz
Product Name: 32GB DDR4 SDRAM
Memory Module Memory Size: 32 GB
Brand Name: Samsung
Memory Size: 32 GB
Brand Name: Samsung
Memory Technology: DDR4 SDRAM
Memory Technology: DDR4 SDRAM
Memory Standard: DDR4-2666/PC4-21300
Memory Standard: DDR4-2666/PC4-21300
Memory Voltage: 1.20 V
Memory Voltage: 1.20 V
Product Type: RAM
Module CAS Latency: CL19
Device Supported: Server
Device Supported: Desktop
PC Error Checking: ECC Number of
Pins: 288-pin
Signal Processing: Registered
Product Type: RAM
Module CAS Latency: CL19
Device Supported: Server
Device Supported: Desktop
PC Error Checking: ECC Manufacturer
Part Number: M393A4K40CB2-CTD Number of
Modules: 1 x 32 GB Number of
Pins: 288-pin
Signal Processing: Registered
Form Factor: DIMM
Memory Speed: 2666 MHz
Form Factor: DIMM
Manufacturer: Samsung
Memory Speed: 2666 MHz
Product Name: 32GB DDR4 SDRAM
Memory Module Memory Size: 32 GB
Brand Name: Samsung
Memory Size: 32 GB
Brand Name: Samsung
Memory Technology: DDR4 SDRAM
Memory Technology: DDR4 SDRAM
Memory Standard: DDR4-2666/PC4-21300
Memory Standard: DDR4-2666/PC4-21300
Memory Voltage: 1.20 V
Memory Voltage: 1.20 V
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- Read full details
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by A-Tech Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
LOADING...
LOADING...
The Samsung M393A4K40CB2-CTD is a 32GB registered ECC DDR4-2666 memory module for compatible servers and workstations that need a single-DIMM memory upgrade; confirm the system supports registered DDR4 DIMMs.
Recommended For
- Server administrators replacing or adding memory in a DDR4 server that explicitly supports 32GB, 2666 MT/s ECC RDIMMs; verify the server’s memory guide before installation.
- Homelab operators expanding a virtualization host that already uses compatible DDR4 RDIMMs and needs additional capacity for running multiple virtual machines.
- Operators maintaining always-on server or storage systems who need ECC-capable memory and whose platform supports this 32GB registered DIMM.
- Refurbishers or repair technicians matching a failed 32GB 2Rx4 DDR4-2666 RDIMM in a server, provided the system’s supported-memory list and installed DIMM configuration allow it.
Real-World Use Scenarios
- On a compatible virtualisation host, adding this module can increase memory available to virtual machines; if RAM capacity is the bottleneck, that may reduce memory pressure when running several VMs at once.
- For a database or application server that is short on memory, adding the module can provide more room for active data and processes; reduced paging is possible when memory capacity is the limiting factor.
- When expanding a compatible homelab or used enterprise server, this 32GB module can add capacity for more server workloads; community posts show this model being handled as server-grade ECC registered memory, rather than ordinary desktop RAM.
- For a server or workstation running long-lived services or data-sensitive jobs, the module’s ECC support can help detect and correct certain memory errors, provided the system supports and enables ECC.
- Before buying for a desktop upgrade, check the motherboard and processor memory requirements: this is a registered server DIMM, so it will not work in systems that require unbuffered UDIMMs.











