Steemit blogging website:
https://steemit.com/review/@hagssfin/review-guide-hotmine-x5-upgrade-kit-for-antminer-s1-s3-s5

Nicely formatted version (February 17, 2018) is available for download here (Mega.nz cloud service):
https://mega.nz/#!c0FhDK6Y!pTfZtThRodoOKWTxeF9R1yd3ee4J4f6We0uGF6nLcrY


Picture copyright (c) Hotmine.

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

Manufacturer is Hotmine, and their headquarters is located in Kiev, Ukraine.

Hotmine:
http://hotmine.io/

Products page:
http://hotmine.io/#products

It uses a 16nm node process ASIC chip manufactured by Bitfury.
The chip model is more specifically Bitfury BF16BTC8162.
Also known as Bitfury BF8162C16 (maybe different revision or marketing name ?).

Bitfury:
http://bitfury.com/

You can also use Antminer S1 or S3 parts (frame, heat sinks, fan) with this,
but you need to buy Beaglebone Black / Antminer BB board separately.

Beaglebone Black / Antminer BB board is needed for the controller board.

And you also need some additional screws and mechanical support parts for the controller board.
I will come up with some kind of solution for this.

I have Antminer S1 in my shelf, so I bought the BB board separately from forum user Mammon.

Technical specifications:

Delivery for this upgrade kit from Ukraine to here Finland was pretty quick via Ukrposhta.

I paid 0.45 BTC including shipping
(this was in April 6, 2017).

Here are some pictures of the X5 upgrade kit parts and my Antminer S1 parts.

You can click these pictures invidually to show a high resolution version of the picture located in a Imgur.com picture album.


Hotmine X5 upgrade kit and Antminer S1 parts.
(click to open a bigger picture)


Hash board picture 1.
(click to open a bigger picture)


Hash board picture 2.
(click to open a bigger picture)


A closer look on the hash board and Bitfury chips.
(click to open a bigger picture)


Controller board (without the BB board installed).
(click to open a bigger picture)