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Two green DDR4 DIMMs with black heatspreaders

Black Diamond Memory

Black Diamond Memory BD8GX22133MQR26 16GB (2 x 8GB) DDR4 2133 ECC Registered server RAM

SKU CH-71KW-9PHK6 MPN BD8GX22133MQR26

16GB dual-channel DDR4-2133 ECC registered kit with 2Rx4 organisation for server stability

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2133 (PC4 17000)
  • Buffer typeRegistered
  • Memory rank2Rx4
  • Product type288-Pin DDR4 SDRAM

Capacity 16GB (2 x 8GB)

Rank 2Rx4

  • 16 GB dual-channel capacity for multitasking headroom
  • DDR4 2133 speed delivers 17000 MB/s bandwidth
  • ECC registered design corrects single-bit errors
  • 2Rx4 organisation optimises density per channel
  • 288-pin form factor fits standard server DIMM slots

Server ECC Registered DDR4 Kit

This 16 GB kit contains two 8 GB DDR4 2133 registered DIMMs with ECC. It is built for servers and workstations that require error correction and signal buffering. The modules use a 288-pin form factor and a 2Rx4 organisation. They are not suitable for standard desktop boards that only accept unbuffered memory.

Verify Registered DIMM Support

Check that your motherboard and CPU explicitly support registered ECC DDR4 before ordering. Consumer chipsets and many entry-level workstation boards will not post with these modules. Confirm the maximum supported speed and total capacity per channel in your system documentation. The kit operates at PC4 17000 and will downclock if the platform requires a lower rate.

Steady Enterprise Workloads

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC corrects single-bit errors that can accumulate under sustained write cycles. The 2Rx4 density helps maintain stability when all slots are populated for long-running database or virtualisation tasks. Heat output remains consistent because the modules run at standard DDR4 2133 voltage.

How it compares

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

Price $240.99
Pricier than about 55% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $15.06 per GB
Pricier than about 75% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameBlack Diamond Memory
Model nameBD8GX22133MQR26
Total capacity16 GB (2 × 8 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Size & build
Shipping weight0.23 kg
Package size178 × 76 × 51 mm

Other versions of this model

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Questions about this item

Does the kit ship as two 8 GB DDR4 modules or must I order them separately?

The package contains two 8 GB DDR4 2133 registered ECC DIMMs for a total of 16 GB.

Should I pick the 2Rx4 registered version or a different rank for my server?

These are 2Rx4 registered modules; choose them when your platform requires registered ECC DDR4 at 2133 MT/s.

What does the PC4 17000 rating tell me about real-world throughput?

PC4 17000 indicates a peak transfer rate of 17 000 MB/s per module at the rated 2133 MT/s speed.

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