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Black Diamond Memory

Black Diamond Memory BD16G2133MQO25 16GB DDR4 2133 ECC Unbuffered SO-DIMM server RAM

SKU CH-QRM5-3VW89 MPN BD16G2133MQO25

16 GB DDR4 2133 ECC unbuffered SO-DIMM with 2Rx8 layout for server workloads

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • Product type260-Pin DDR4 SO-DIMM
  • Key featuresServer Memory Black Diamond Memory 16 GB (2Rx8) DDR4 2133 (P

Capacity 16GB

  • 16 GB capacity supports demanding server workloads
  • DDR4 2133 speed delivers reliable data throughput
  • ECC protection detects and corrects memory errors
  • Unbuffered design simplifies installation in compatible slots
  • 260-pin SO-DIMM form factor fits compact server boards

16 GB DDR4 ECC SO-DIMM

This 16 GB DDR4 2133 SO-DIMM provides ECC error correction in an unbuffered 260-pin package. It targets servers and workstations that require data integrity without registered modules. The 2Rx8 organisation delivers 16 GB in a single slot.

Upgrade from non-ECC or smaller DDR4 SO-DIMMs

Replace standard non-ECC laptop memory when silent data corruption is unacceptable, or add capacity beyond 8 GB modules in dense platforms. The jump is worth it when uptime and data accuracy outweigh the small latency cost of ECC.

DDR4 2133 SO-DIMM practical limits

The DDR4 2133 interface caps bandwidth at the PC4 17000 rate, so throughput cannot scale with faster CPUs. Unbuffered ECC modules are not compatible with platforms that require registered DIMMs, and 260-pin SO-DIMM slots will not accept full-size DIMMs.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $309.99
Pricier than about 61% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $19.37 per GB
Pricier than about 80% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameBlack Diamond Memory
Model nameBD16G2133MQO25
Total capacity16 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Size & build
Shipping weight0.09 kg
Package size170 × 56 × 13 mm

Other versions of this model

3 more in the same range

Questions about this item

Does this 260-pin DDR4 SO-DIMM fit a standard laptop SODIMM slot?

Yes, the 260-pin DDR4 SO-DIMM form factor matches the standard laptop SODIMM slot used for DDR4 memory.

What is the correct way to seat the module so the ECC function works?

Align the notch with the slot key, press firmly until both side clips click, and verify the system reports 16GB with ECC active in BIOS.

When should I plan to replace this 16GB DDR4 2133 module?

Replace it if memory diagnostics report correctable ECC errors rising over time or if a system upgrade requires a faster DDR4 speed.

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