Hello! Are you still selling chips and boards for home design? give contact please.

So, this is Hotmine X5 upgrade kit for Antminer S5, which consists of two hash boards and one controller board.

Manufacturer: Hotmine (en.hotmine.io) from Kiev, Ukraine.

Product page: http://en.hotmine.io/x5-x6-upgrade-kit-new

It uses 16nm node process ASIC chips manufactured by Bitfury.
The chip model is more specifically Bitfury BF16BTC8162.
Also known as Bitfury BF8162C16 (maybe different revision or marketing name?).
Bitfury info: http://bitfury.com/products#16nm-asic