Working system pull, Samsung 8GB DDR4 2666 MHz ECC RDIMM Server Memory stick. Model M393A1K43BB1-CTD. RAM stick only, original packaging not included.
Please note: Model number can be either M393A1K43BB1-CTD6Y or M393A1K43BB1-CTD6Q but they are functionally equivalent.
This module should be compatible in your system as long as it supports DDR4 ECC Registered server RAM – Compatible with most HP, Dell, and IBM Servers. Not compatible with normal Desktop PCs. Please double check your machine’s compatibility and refer to the guidelines below.
Tested and guaranteed to work. It is your responsibility to make sure this DDR4 ECC Registered RAM works in your system. If you have any doubts, please send us a message and we can try checking for you.
Warranty:
- Backed by 1 year eBay Refurbished Warranty
Detailed Specifications:
| Form Factor |
RDIMM |
|---|---|
| Kit Qty |
1x 8GB |
| Technology |
DDR4-2666 |
| Error Correction Code |
ECC |
| Voltage |
1.2V |
| Height |
STD |
| Rank |
1Rx8 |
| Speed |
PC4-21300 (2666) |
| Cas Latency |
CL19 |
| Made By |
Samsung |
Shipping
- Free shipping via USPS Ground Advantage
- Free 1 day handling for shipping
Compatibility:
- Please check your motherboard QVL / compatibility list for this module prior to purchase
- Please note this will not work in regular consumer desktop motherboards
Returns Policy
- Free returns only offered if the item is returned in original condition (i.e the factory seal is not broken, or excess usage)
- A minimum restocking fee of 20% applies if item is not in original condition.
General Compatibility Rules
Compatible with:
-
Some Intel Xeon CPUs
- Some AMD Threadripper CPUs
- None for Intel consumer CPUs
- None for AMD Ryzen CPUs
*Note: We say ‘some’ Intel Xeon and AMD Threadripper CPUs as it also depends on the motherboard or setup as a whole – please double check your setup is compatible with ECC RDIMM.
General Types of ECC RAM:
-
ECC Registered – RDIMM ECC (This listing)
- ECC Unbuffered – UDIMM ECC
- Non-ECC Unbuffered – UDIMM Non-ECC
*Motherboards that support #1 never support #2 or #3. On the other hand, motherboards that support #2 will also work with #3; but they will never work with #1.

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