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Green circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 4GB DDR4 2400MHz CL17 260-Pin SODIMM 1Rx16 HP 862397-855 Laptop RAM

SKU CH-TJVA-6AAA0

4GB DDR4 2400MHz laptop module with CL17 timing and 1.2V operation, compatible with HP 862397-855 systems

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB DDR4 module adds responsive multitasking capacity
  • 2400 MHz PC4-19200 speed accelerates application load times
  • CL17 latency at 1.2 V keeps power draw low
  • 260-pin SO-DIMM fits compatible HP 862397-855 laptops
  • Lifetime warranty and US-based tech support back every module

DDR4 2400 MHz SODIMM for laptop upgrades

This 4 GB DDR4 module runs at 2400 MHz with CL17 latency and 1.20 V operation. It uses a 260-pin SO-DIMM form factor and unbuffered, non-ECC architecture. The stick is built with major-brand chips and targets AMD and Intel laptop platforms.

Steady throughput for everyday multitasking

At the rated DDR4 2400 speed the module sustains PC4-19200 bandwidth during extended workloads rather than only in brief bursts. CL17 timing and standard voltage keep thermals predictable inside thin chassis. Quality-assurance testing on every unit reduces the chance of errors under continuous use.

Replaces HP 862397-855 when capacity is

Swapping an existing 4 GB stick or filling an empty slot adds headroom for browser tabs, office suites and light creative tasks. The upgrade is worthwhile when the system currently hits memory limits during normal use. Buyers who need more storage or a second module for dual-channel should look elsewhere.

How it compares

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

Price $31.99
Cheaper than about 72% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $8.00 per GB
Pricier than about 70% of the 1,886 comparable items (median $5.94 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
Total capacity4 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

How much heat and power does the 1.2 V DDR4 2400 module draw when the laptop runs all day?

The module operates at the standard DDR4 voltage of 1.2 V, so power draw and heat output stay low during extended use.

What must my laptop already have for this 260-pin SODIMM to work?

Your laptop needs a free DDR4 SO-DIMM slot that accepts 260-pin modules running at 2400 MHz.

Will this CL17 stick run stably alongside the original HP 862397-855 memory already in my notebook?

Yes, it is a compatible equivalent for HP part 862397-855 and uses the same DDR4 2400 specification.

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