is the model HP DW3157NIA support HDD?

[Behnam2000]

Hello there 
I wanna buy a HP DW3157NIA , can I add another HDD or SSD to it? (beside a 512GB SSD m2)

[GOLD_MASTER]

Hello @Behnam2000 .
On the computer you can have a dual configuration consisting of a HDD + SSD.
The following combinations are just examples of what you can do:
256 GB, PCIe, value, solid-state drive + 1 TB, 5400 rpm, 7.2 mm hard drive.
256 GB, SATA, TLC, solid-state drive + 1 TB, 5400 rpm, 7.2 mm hard drive
128 GB, SATA, TLC, solid-state drive + 2 TB, 5400 rpm, 7.2 mm hard drive

Supported SSD's:
512 GB, PCIe L52006-001
256 GB, PCIe L52005-001
256 GB, SATA-3, TLC L52004-001
128 GB, SATA-3, TLC L52003-001

Supported HDD'S:
2 TB, 5400 rpm 912487-855
1 TB, 5400 rpm L30422-005
500 GB, 5400 rpm 778186-005

[Paul_Tikkanen]

Hi, @Behnam2000 

You might be able to, but it is too much trouble to add a 2.5" drive because normally only the models that come with a 2.5" drive have the parts needed for it to work.

FInding the parts you need to add the drive will be a challenge to say the least.

I would either plan on removing the 256 GB SSD and installing one having a larger storage capacity such as 1 TB or find a model that includes both a 2.5" drive and a SSD.

You can see the list of parts needed to add a 2.5" drive in chapter 3 of the service manual at the link below--the second manual listed (7.34 MB).

HP Laptop PC 15-dw3000 Manuals | HP® Customer Support