Servers with 3.5" NVMe drive bays

[cbn]

While doing research in another thread I found out that some servers have 3.5" NVMe bays:

http://www.supermicro.com/products/system/1U/6019/SYS-6019U-TN4R4T.cfm

https://www.thinkmate.com/systems/supermicro/ultraserver/nvme

http://b2b.gigabyte.com/Rack-Server/R28N-F3C-rev-220#ov

The R28N-F3C is built with a backplane board enabling four 3.5" NVMe drive bays on the front of the chassis.

http://b2b.gigabyte.com/Rack-Server/R28N-F3C-rev-220#sp

Storage

4 x 3.5" hot-swappable NVMe bays
8 x 3.5" hot-swappable SAS/SATA bays
Default configuration supports:
- 4 x NVMe drives (from CNV3114)
- 8 x SATA 6Gb/s drives (from Intel® C612 chipset)
SAS card is required to enable SAS function

So who do you think will make the first 3.5" NVMe drive?

Will it be an SSD (3DXpoint or NAND) or hard drive?

http://www.tomshardware.com/news/hdd-multi-actuator-heads-seagate,36132.html

Seagate says the drives could use SAS, SATA, or NVMe interfaces, but the company will respond to the needs of its customers to develop the final solutions.

 

[cbn]

My guess is that the first 3.5" NVMe will be a Multi-actuator hard drive with a 3DXpoint cache.