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Green printed circuit board with black memory chips on both sides and gold edge connectors

A-Tech

A-Tech 4GB DDR4 2133MHz CL15 Desktop RAM 848215-800

SKU CH-D0XB-3V8D1

4GB DDR4 2133MHz CL15 desktop memory module replaces HP part numbers 848215-800 and 840821-001

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Tested speed2133
  • Rated voltage1.2 V
  • 4GB DDR4 module expands desktop capacity for smoother multitasking
  • 2133 MHz speed with CL15 latency delivers responsive system performance
  • 20V standard voltage reduces power draw and heat
  • 288-pin DIMM fits compatible HP desktop motherboards directly
  • Tested replacement for HP part numbers 848215-800 and 840821-001

A-Tech 4GB DDR4 2133MHz Desktop Module

This 4GB DDR4 DIMM runs at 2133MHz with CL15 timing and 1.20V operation. It is an unbuffered non-ECC unit built as a direct replacement for HP part numbers 848215-800 and 840821-001. The single-rank 1Rx8 layout fits standard desktop memory slots.

288-pin DIMM form factor with major brand chipset

The module uses a 288-pin DDR4 edge connector and carries no heat spreader, keeping the profile low for tight chassis clearances. Major brand chips are tested to PC4-17000 specifications for dependable daily operation. Installation follows the usual desktop DIMM procedure without extra cables or brackets.

Replaces original HP 848215-800 or 840821-001 memory

Swapping the factory module for this A-Tech unit restores or adds 4GB of DDR4 capacity at the rated 2133MHz speed. The upgrade is worthwhile when the system currently runs with less memory or a slower DDR4 stick and the motherboard supports DDR4 2133 unbuffered DIMMs.

How it compares

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

Price $25.99
Cheaper than about 82% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB
Lower than about 80% of the 3,251 comparable items (median 16 GB).
Price per GB $6.50 per GB
Typical for this category: the median of 3,251 items is $6.75 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 nameA-Tech
Product lineCompatible Replacement for HP
Model name848215-800, 840821-001
Total capacity4 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
Tested speed2133
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forCompatible Replacement for HP 848215-800, 840821-001

Questions about this item

Will this module fit my HP desktop that originally used part 848215-800?

Yes, this 4GB DDR4 DIMM is a compatible replacement for HP part numbers 848215-800 and 840821-001.

My motherboard has 288-pin DDR4 slots — is the pin count correct?

The module uses the standard 288-pin DDR4 DIMM form factor for desktop motherboards.

Does this RAM require any special voltage setting in the BIOS?

It runs at the standard DDR4 voltage of 1.20V, so no manual adjustment is needed.

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