Samsung 16GB DDR4 RAM PC4-2666V ECC Unbuffered UDIMM M391A2K43BB1-CTD.

I am selling some used RAM which come from a working environment. They have been tested and work well. If you have any questions or would like additional photos, let me know. FAST SHIPPING! I ship ground via usps, UPS, or Fedex (whatever is cheapest). Thanks for looking. Check my response and buy with confidence! **SK hynix 16GB DDR4 PC4-2666V Non-ECC Unbuffered Desktop Memory Module**

**Samsung 16GB DDR4 PC4-2666V ECC Unbuffered Server/Workstation Memory Module**

**Item Specifications:**

• Brand: Samsung

• Model/MPN: M391A2K43BB1-CTD

• Capacity: 16GB (1 x 16GB)

• Memory Type: DDR4 SDRAM

• Speed: 2666MHz (PC4-2666V / PC4-21300E)

• Error Correction: ECC (Error Checking & Correcting)

• Signal Processing: Unbuffered (ECC UDIMM)

• Rank: 2Rx8 (Dual Rank)

• Form Factor: 288-Pin DIMM

• Voltage: 1.2V

**⚠️ COMPATIBILITY WARNING — PLEASE READ BEFORE BUYING:**

This is ECC UNBUFFERED memory designed strictly for compatible enterprise Workstations, Servers, and NAS setups (such as Synology, TrueNAS builds, or specific Supermicro/Asus workstation motherboards).

• This memory module WILL NOT WORK in standard consumer home desktop computers or gaming PCs (which require standard Non-ECC memory).

• This memory module WILL NOT WORK in enterprise servers requiring Registered / Buffered (RDIMM) memory.

• Please verify your motherboard and processor technical specifications to ensure compatibility before purchasing.

**Condition:**

Pulled from a working environment. Gold contacts are clean and in excellent shape.

Tested Working

**Shipping & Handling:**

Will be shipped securely inside the anti-static ESD shielding grid bag shown in the photos to ensure safe delivery. Fast shipping.