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Green 288-pin DDR4 module with black chips and gold contacts

Brute Networks

Brute Networks 4X70S69155 8GB DDR4-2666 1Rx8 ECC Unbuffered server RAM

SKU CH-B58X-4FW61

Adds 8 GB of DDR4 ECC memory at 2666 MHz with 1Rx8 unbuffered layout for Lenovo servers

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 8 GB DDR4-2666 capacity expands server memory
  • 2666 MHz PC4-21300 speed supports demanding workloads
  • 2 V operation reduces power draw
  • ECC 1Rx8 design protects data integrity
  • 100 % Lenovo 4X70S69155 compatibility simplifies upgrades

Lenovo-compatible DDR4 server module

This 8 GB DDR4-2666 module matches Lenovo part 4X70S69155 and runs at 1.20 V with ECC protection. It is built for administrators who need to expand memory in supported Lenovo servers without changing the existing configuration.

288-pin unbuffered 1Rx8 layout

The stick uses a standard 288-pin DDR4 form factor and a single-rank 1Rx8 organisation, so it seats directly into compatible DIMM slots. Major-brand chips from Samsung, SK Hynix or Micron are used throughout, and every unit is tested for full compatibility before it ships.

Matched kits and lifetime cover

Orders are filled with identically matched modules to avoid mixing revisions in the same system. A lifetime warranty backs the memory, and the third-party design keeps the original server warranty intact while costing considerably less than the OEM equivalent.

How it compares

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

Price $73.99
Cheaper than about 77% 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 $9.25 per GB
Pricier than about 64% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameLenovo
Total capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Power
Rated voltage1.2 V

Questions about this item

What speed does the DDR4-2666 interface actually run at in a server?

The module operates at 2666 MT/s, which is the PC4-21300 data rate, so the memory bus is capped at that transfer speed when installed in a compatible system.

What physical slot and pin count does this 288-pin DDR4 module require?

It fits a standard 288-pin DDR4 DIMM slot; the 1.20 V unbuffered design matches the mechanical keying of server boards that accept 1Rx8 ECC modules.

How is the module installed and what step do people often miss?

Align the notch with the slot key, press firmly until both side clips click shut, then verify in BIOS that the 8 GB stick is detected at 2666 MT/s with ECC active.

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