Why host an Antminer S21+ (235 TH/s) instead of running it at home
Bitmain sells the S21+ in 235 TH/s, 225 TH/s and 216 TH/s versions. They differ in hashrate and wall power, so they differ in estimated daily profit, but they are all air-cooled machines in the same chassis and they all rack the same way. Check the serial or the pool reading for the exact bin before you ship, because the 216 TH/s unit earns noticeably less per day than the 235 TH/s one at the same power cost.
A Antminer S21+ (235 TH/s) draws 3,525 W continuously. That is more than a typical household circuit will carry, it needs a dedicated 240 V feed, and it moves the heat of a space heater into the room all year. It is also loud: a current-generation air-cooled ASIC runs at roughly the noise level of a vacuum cleaner, permanently. Hosting moves all of that into a building designed for it.
Who it suits: Buyers picking up mixed S21+ lots, where knowing the exact bin changes the return.
- All-inclusive $0.072–$0.089 USDT/kWh covering power, rack space, cooling, network and monitoring
- Filtered air cooling with 156 Summer/Winter Air Filtration, so dust never reaches the boards
- On-site miner repairs and part replacement — no shipping your machine away when a fan fails
- Free miner box storage, and a racking fee of $35 USD/miner one time per connection or boxing out
- A no-deposit option, and a minimum order of 5 miners
Antminer S21+ (235 TH/s) specifications and hosted economics
These are the numbers we quote from. The daily profit figure is our own published estimate at $0.075 USD per kWh (miner quantity and availability based), and every other line follows from it.
Antminer S21+ (235 TH/s) — hosted at our Quebec facility
| Hashrate | 235 TH/s |
|---|---|
| Power at the wall | 3,525 W (3.525 kW) |
| Efficiency | 15.0 J/TH |
| Cooling | Air-cooled — the type we host |
| Est. gross profit per miner per day | $3.16 at $0.075 USD per kWh (miner quantity and availability based) |
| Est. net profit per miner per month | $94.80 at $0.075 USD per kWh (miner quantity and availability based) |
| Break-even electricity price | about $0.112 per kWh |
| Electricity used per miner per month | 2,538 kWh |
| Your hosting cost per miner per month | $183–$226 at $0.072–$0.089 USDT/kWh |
| Our hosting rate | $0.072–$0.089 USDT/kWh, all-inclusive |
| Minimum order | 5 miners |
| Racking fee | $35 USD/miner one time per connection or boxing out |
How to read the break-even line: at about $0.112 per kWh this machine earns nothing. Below that it makes money, above it it loses money. Our rate band runs $0.072–$0.089 USDT/kWh, so the gap between your rate and $0.112 is your margin.
Bitcoin price, network difficulty and pool fees all move these numbers week to week. Use the Bitcoin mining profitability calculator to re-run them at a different hashprice before you commit.
What Antminer S21+ (235 TH/s) hosting costs with us
A single Antminer S21+ (235 TH/s) uses about 2,538 kWh a month. At our rate band that is $183–$226 per machine per month, all-inclusive. There is no separate power bill, cooling charge, rack rental or bandwidth line: the rate you are quoted is the rate you pay.
Where you land inside the band depends on the size of your order and the space available when you book. A five-machine order and a two-hundred-machine order are not the same deal, which is why we quote rather than publish a single number. The cost per kWh page explains exactly what is inside the rate.
On top of the monthly rate there is one charge: a racking fee of $35 USD/miner one time per connection or boxing out. Miner box storage is free while you host with us.
Getting your miners to our Quebec facility
Ship your Antminer S21+ (235 TH/s) units to us and we handle the rest: receiving, racking, cabling, network configuration and pool setup. Most orders are hashing within one to two business days of arrival, depending on size.
If you do not own the hardware yet, an equipment + hosting package combines the purchase and the hosting agreement in one step — the machines are delivered straight to our racks, with no shipping, customs or setup for you to arrange.
Miners already in another facility can be moved; we have taken over fleets mid-contract before. Tell us the model mix and the move date when you request a quote.
