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Green circuit board DDR5 memory module with black heat spreader and gold contacts

Black Diamond Memory

Black Diamond Memory BD8G6400MC28 8GB DDR5 6400 memory upgrade

SKU CH-HFKF-NXDMQ MPN BD8G6400MC28

Adds 8GB of DDR5 6400 speed via a 288-pin module for faster system performance

  • Total capacity8 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • Product type288-Pin DDR5 SDRAM
  • 8 GB capacity supports smoother multitasking
  • DDR5 6400 speed delivers high data throughput
  • 288-pin form factor fits compatible desktop slots
  • PC5 51200 rating confirms peak bandwidth class
  • New condition ensures full manufacturer specification compliance

8 GB DDR5 6400 system-specific upgrade

This 8 GB DDR5 6400 module targets users who need a single stick to fill a specific 288-pin slot in a compatible laptop or small-form-factor desktop. It delivers PC5 51200 bandwidth for workloads that benefit from higher memory throughput. The BD8G6400MC28 is built for systems that require this exact density and speed rating. Buyers who need more than 8 GB of total capacity should look elsewhere.

Thermals noise and power in normal use

DDR5 modules operate at a lower voltage than previous generations, which helps keep heat output modest during typical office or multitasking sessions. The memory runs silently because it has no moving parts and draws only the power required for the 6400 MT/s data rate. No additional cooling is required beyond the airflow already present in the host chassis.

Upgrading from slower DDR5 or smaller capacity

This stick replaces a lower-speed DDR5 module or a smaller-capacity stick in a platform that supports 6400 MT/s operation. The jump is worthwhile when the system can run the memory at its rated speed and the application workload is sensitive to memory bandwidth or capacity. If the platform caps memory speed below 6400 MT/s, the module will downclock and the benefit will be reduced.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $172.99
Cheaper than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $21.62 per GB
Pricier than about 67% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameBlack Diamond Memory
Model nameBD8G6400MC28
Part numberBD8G6400MC28
Total capacity8 GB
Product type288-Pin DDR5 SDRAM
Performance
Rated speedDDR5 6400 (PC5 51200)
Size & build
Shipping weight0.05 kg
Package size178 × 102 × 5 mm

Questions about this item

How is this 288-pin DDR5 module installed and what step is often missed?

Align the single notch on the 288-pin edge connector with the motherboard slot key, press down firmly until both retention clips click shut, then enable the 6400 MT/s profile in the BIOS so the memory runs at its rated speed.

What maintenance or replacement will this 8GB DDR5 kit need later?

No routine maintenance is required; keep the gold contacts clean and the system dust-free. Replace the module only if a memory test reports errors or if total capacity must exceed the single 8GB stick.

What limit appears first when this DDR5 6400 module runs under sustained load?

The JEDEC-defined DDR5 6400 (PC5 51200) data rate is the primary ceiling; stability under prolonged load depends on the motherboard's memory controller and cooling rather than a fixed thermal or power limit on the stick itself.

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