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A-Tech

A-Tech 8GB DDR4 2400MHz CL17 260-Pin SODIMM Laptop RAM for HP Z4Y85AA#ABA

SKU CH-YXZB-G7CH1

8GB DDR4 2400MHz CL17 260-pin SODIMM laptop memory module for HP Z4Y85AA#ABA compatibility

  • Total capacity8 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forCompatible Replacement for HP Z4Y85AA#ABA
  • 8GB capacity expands multitasking headroom for everyday workloads
  • DDR4 2400MHz speed accelerates data transfer rates
  • CL17 latency supports responsive system performance
  • 260-pin SODIMM form factor fits compatible laptop slots
  • 2V operation maintains standard DDR4 power efficiency

8GB DDR4 SODIMM for HP Z4Y85AA#ABA

This 8GB DDR4 260-pin SODIMM module is built as a direct replacement for the HP Z4Y85AA#ABA part number. It targets laptop, notebook and all-in-one owners who need a straightforward memory upgrade without ECC or registered buffering.

CL17 timing at 1.20V standard voltage

The stick runs at DDR4 2400 (PC4-19200) with CL17 latency and the standard 1.20V DDR4 voltage. Its unbuffered, non-ECC design and lack of a heat spreader keep the profile slim for tight SODIMM slots in thin-and-light chassis.

Verify 260-pin DDR4 slot and maximum supported speed

Before ordering, confirm your system accepts 260-pin DDR4 SO-DIMMs and can operate at 2400MHz; some platforms down-clock automatically, while others may require a BIOS update or have a lower native ceiling.

How it compares

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

Price $44.99
Cheaper than about 61% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $5.62 per GB
Cheaper than about 55% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for HP
Model nameZ4Y85AA#ABA
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forCompatible Replacement for HP Z4Y85AA#ABA

Questions about this item

Does the DDR4 2400 MHz PC4-19200 interface cap real-world bandwidth below the rated 19200 MB/s?

The module runs at DDR4 2400 MHz with a PC4-19200 rating; actual throughput depends on the laptop's memory controller and any BIOS limits, so sustained bandwidth can be lower than the theoretical peak.

Will the 260-pin SO-DIMM fit my laptop's memory slot without a heat spreader?

Yes, the stick uses the standard 260-pin DDR4 SO-DIMM form factor and has no heat spreader, so it fits the same slots as the original HP Z4Y85AA#ABA module.

What is the correct way to seat the module, and what step do people often miss?

Align the notch with the slot key, insert at a slight angle, then press down firmly until both side clips click; the step most often missed is pushing until both clips engage fully.

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