Upgrade SSD + HDD for HP 14-bs0xx (PN: 2CN69EA#ACB)

[VladKim]

Hello! I want to update my HP 14-bs0xx (PN: 2CN69EA#ACB), namely put an additional SSD. The motherboard has an additional connector for connecting the second device.
Visually, this connector resembles m.2 (2280) with the "key M" (it has 5 pins, but it is flipped)
I need to buy an SSD for an upgrade:
1. m.2 (2280) with "M key" and SATA interface support
2. m.2 (2280) with "key M" and support for PCI-E x4 (NVMe), and PCI-E (NVMe) interfaces
3. With the "mSATA" interface connector,

4. Maybe I'm wrong and I need to buy another SSD?

The issue is very important because SATA and PCI-E x4 (NVMe), and PCI-E (NVMe).

Motherboard Number: DA0P1BMB6D0,  Rev: D.

I want the operating system to boot from the SSD, and the working documents stored on the HDD

Manual on the laptop: http://h10032.www1.hp.com/ctg/Manual/c05485573

There it is written that so it is possible to make, but it is not written what is necessary SSD in the second socket.

Help me choose the right SSD and give the link for purchase.

Thank you for helping us!

[Nebuloso]

Yes, you are correct, what you need in a M.2 2280, I have the same laptop and install a WD 240GB 2280 and it works in luxury.