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Green rectangular memory module with black chips and gold edge contacts

Brute Networks

Brute Networks 4X70R38787 Lenovo Compatible 8GB DDR4-2666 CL15 1.2V Non-ECC UDIMM

SKU CH-KZV4-SS74K

Compatible 8 GB DDR4-2666 CL15 1.2 V UDIMM upgrades Lenovo systems with OEM-grade major-brand chips

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnregistered
  • 8GB capacity lets you run more apps simultaneously
  • DDR4-2666 speed at CL15 latency delivers responsive data access
  • 2V operation reduces system power draw
  • Non-ECC unbuffered design fits standard desktop and server slots
  • Built with major-brand chips for Lenovo-validated compatibility

Lenovo Compatible 8GB DDR4 Module

This Brute Networks module supplies 8GB of DDR4 memory rated at 2666MHz with a CL15 latency. It operates at 1.2V and uses a non-ECC unregistered design. The part matches Lenovo part number 4X70R38787 for direct compatibility.

Fits Standard UDIMM Slots

The stick installs in any desktop or workstation board that accepts DDR4 UDIMMs at this speed and voltage. It requires no registered or buffered support and adds capacity without occupying extra DIMM positions beyond its single slot. Builders gain headroom for multitasking and data-heavy workloads.

Major Brand Components Backed by Lifetime Warranty

Each module is built with Samsung, SK Hynix or Micron chips and tested to meet or exceed OEM specifications. The lifetime warranty covers the memory for as long as you own it. No additional software or accessories are included in the package.

How it compares

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

Price $66.99
Cheaper than about 79% 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 $8.37 per GB
Pricier than about 60% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameLenovo
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

What speed ceiling does the DDR4-2666 CL15 module hit when the system runs flat-out for hours?

The module is rated for 2666 MT/s at CL15 with a 1.20 V supply; the memory controller will hold that data rate as long as the platform keeps the slots within spec.

How loud or hot does the 1Rx8 stick get during all-day workloads?

Unbuffered DDR4 UDIMMs have no moving parts and draw only 1.20 V, so they add negligible noise and only modest heat that the chassis airflow normally handles.

Which motherboard slot and voltage must already be present for this 8 GB kit to work?

A standard 288-pin DDR4 DIMM slot running at 1.2 V is required; the module is unregistered non-ECC and follows the PC4-21300 pin-out.

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