infeeeee , 5 hours ago (edited 5 hours ago)

It’s a Fujitsu W26361 There isn’t a lot of info about it on the net, all the links are rotten.

You have a sata port. You have to use an external power supply for that. Or maybe one of the pins next to it can supply the required voltage, you can use a multimeter to figure it out if you are brave. I guess the white one labeled PWR should be supply some volts. To be safe you can split the power of the other sata ssd or buy something like this:

https://ae01.alicdn.com/kf/HTB1ORhqIXXXXXXvXFXXq6xXFXXXL/Hard-Disk-External-Power-Supply-5V-12V-Dual-DC-4-Pin-Molex-Adapter-Cable-SATA-plus.jpg

You also have 2 an mPCIe or mSATA port. It’s impossible to tell the difference from a photo, because they use the same connector.

en.wikipedia.org/wiki/PCI_Express#Mini-SATA_(mSAT…

Without any more knowledge I would guess at least one of them is an mPCIe. Having 2 sata ports and an 2 mSATA next to it would be strange, they could use the mPCIe for a 3G modem or wifi, it would make more sense in a thin client like this.

If it’s an mPCIe you can buy a sata expansion there and even connect up to 4 sata drives. Looks like something like this:

https://i.pinimg.com/originals/2b/f9/d2/2bf9d2eb08223b7267876bbaf2d39a21.png

You can convert it to normal PCIe or m.2, the possibilities are endless:

https://www.adt.link/Uploads/image/R6/3D/R65SF.png

https://lemm.ee/api/v3/image_proxy?url=https%3A%2F%2Fwww.dhresource.com%2F0x0s%2Ff2-albu-g13-M00-F1-E9-rBVak18zooKACiPnAAwNP8eIl9U647.jpg%2Fmini-pcie-to-pcie-x8-built-in-adapter-mpcie.jpg

If it’s not mPCIe but mSATA, you can buy mSATA SSD there, they are really rare nowadays. Or you can buy an mSATA to SATA adapter:

https://alexnld.com/wp-content/uploads/2018/02/PC0181L_1.jpg