We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with black memory chips and gold edge connectors

Brute Networks

Brute Networks 8GB DDR4-2666 ECC UDIMM 1Rx8 CL15 1.2V 879505-B21-BN

SKU CH-6KJY-69DTK

An 8 GB DDR4-2666 ECC UDIMM with CL15 timing at 1.2 V, HP 879505-B21 compatible and built with major-brand chips

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnregistered
  • 8GB DDR4-2666 capacity for demanding server workloads
  • ECC protection maintains data integrity in critical applications
  • CL15 latency and 1.2V operation balance speed with efficiency
  • 100% HP 879505-B21 compatible for guaranteed system integration
  • Lifetime warranty backed by major-brand Samsung, SK Hynix or Micron chips

8GB DDR4-2666 ECC UDIMM for HP Servers

This Brute Networks module delivers 8GB of DDR4-2666 ECC unregistered memory built for HP server platforms. It matches HP part number 879505-B21 and uses major-brand DRAM from Samsung, SK Hynix or Micron. The stick runs at 1.20V with CL15 latency and is validated for full compatibility with the original system warranty.

Capacity and headroom for mainstream workloads

An 8GB PC4-21300 module handles typical virtualization hosts, database nodes and file servers that fit within a single DIMM per channel. Performance scales linearly until the memory controller or total slot count becomes the bottleneck, at which point larger or additional DIMMs are required.

1Rx8 organisation and HP-qualified compatibility

The single-rank x8 layout ensures broad support across HP Gen9 and Gen10 platforms that accept unbuffered ECC UDIMMs. Buyers needing registered DIMMs, higher densities or non-HP qualified modules should look elsewhere.

How it compares

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

Price $78.99
Cheaper than about 75% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $9.87 per GB
Pricier than about 67% 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 nameHP
Total capacity8 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeUnregistered
Power
Rated voltage1.2 V

Questions about this item

Will this 2666MHz DDR4 module run at its rated speed alongside slower DDR4 DIMMs already in my server?

The module is rated DDR4-2666 PC4-21300 CL15 1.20V; when mixed with slower DDR4 DIMMs the memory controller will down-clock all sticks to the lowest common speed, so this module will operate at that lower frequency.

How can I verify the ECC UDIMM is detected and error-correction is active after installation?

Enter the server BIOS or UEFI and confirm the slot shows 8GB at 2666MHz with ECC enabled; most HP ProLiant systems also log a POST message stating "ECC memory detected" when the feature is active.

Does the 879505-B21-BN package include a heatsink or any installation tools, or must they be purchased separately?

The box contains only the single 8GB 1Rx8 ECC UDIMM; no heatsink, no tools and no additional cables are included.

More in ECC Server RAM

Similar items