Question 1

How much BTC can this mine per month?

Accepted Answer

Not much unless you get like 12 of the 300 GH sticks.
They are great for power consumption wise but they are so expensive and hard to get multiple ones that it is almost not worth it. Also this usb strip does not give each port the 5 amps it needs so it will not be able to get the 800 GH it says I can get and will be around 300gh per stick even tho it says it can be overclocked, you need a special usb hub that can handle that much power.
Honestly the best bet is to get an ASIC miner as the cost of multiple sticks would be around the same and you need to have at least 40,000 GH to get $88.00 / mo 
Jack Dorsey and Block is working on making more efficient miners for BTC but honestly your best bet to get BTC right now is to buy with a CC on crypto platform or get an alt coin miner and exchange for BTC. 
I have a mini doge miner I use to mine DOGE and trade the LTC for BTC, not as efficient but it’s more affordable.

Question 2

Is this just usb hub with no miners

Accepted Answer

Yes just the powered USB hub

Question 3

Miners and fan not included.   plug and go - everything you need is included to start mining asap.  which statement is correct

Accepted Answer

Just the powered USB hub.

Question 4

I’m assuming this only mines Bitcoin? What about ether?

Accepted Answer

Yes it does, you can mine other SHA coins that use the same algorithm but the difficulty is around the same. 
Each coin has its own algorithm that o Lu mines certain coins like etcash, Scrypt, SHA and others. 
ASIC miners only mine one algorithm while video cards can mine different ones but are not as efficient

ASIN	B08TWDS9DD
Brand	BitcoinMerch.com
Brand Name	BitcoinMerch.com
Colour	silver
Compatible Devices	Desktops, Laptops
Country of Origin	USA
Data Transfer Rate	5 Gigabits Per Second
Enclosure Material	Aluminum
Hardware Interface	USB
Item Weight Unit of Measure	0.58 Kilograms
Manufacturer	BitcoinMerch.com
Manufacturer Part Number	BTM99919
Model Number	BTM99919
Number of Ports	7
Operating System	Linux, Windows XP
Product Features	Powered
Special Feature	Powered
Total USB Ports	7
UPC	784046990739

Powered 7-Port USB 3.0 Hub, Upgraded 65W Compatible with Newpac, Twopac, Moonlander, Antminer US Plug - USB Miner NOT Included

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