MINING BUNDLE
12x Antminer S21 Hydro 319TH + 3x Bitmain ANTRACK AR21 Racks
SHA-256 · 3.83 PH/s
12 miners · Hydro cooling · Without container
Back Order
- Hashrate
- 3.83 PH/s319 TH/s each
- Algorithm
- SHA-256
- Efficiency
- 16W/TH
- Power
- 61.25kW5.1kW each
- Estimated Power
- 65.15kW3.9kW auxiliaries (estimated)
- Earns/kWh
- 7.67p
Solo · eCashAuto · Annual comparisonTotal Saving £2,530.00
Component Miner Rankings
These are the included individual miners’ existing ranks. Bundle economics use the complete configuration price, delivery, discount and auxiliary power. Mixed fleets show an average component percentage score, with the individual ranks in its breakdown.
Selected Equipment Schedule
12 miners · 65.15kW estimated operating load. Only the following quantities and products are included in this configuration.
| Equipment | Quantity | Role |
|---|---|---|
| Bitmain Antminer S21 Hydro 319Th SHA-256 Bitcoin Miner | 12 | Miner |
| Bitmain ANTRACK AR21 | 3 | Infrastructure |
Price Breakdown & Volume Discount
- Miner Subtotal
- £29,196.00
- Infrastructure Subtotal
- £9,270.00
- Miner Discount
- 8%
- Recorded AER Delivery Allowances
- £3,900.00
The volume discount applies once to current published miner prices, including their embedded delivery allowance. Freight enters the complete package total once. Infrastructure is not discounted. Existing AER £10 rounding applies. Unconfirmed amounts are indicative, not an orderable offer.
Power Consumption & Installation Requirements
- Miner Load
- 61.25kW
- Estimated Auxiliaries
- 3.9kW
- Estimated Total
- 65.15kW
- Energy per 24 Hours
- 1,563.552kWh
Calculation uses listed miner power, published pump and fan ratings, plus a 100W controls allowance per rack. The controls figure is an assumption, not a Bitmain specification. Actual consumption varies with temperature and operating settings. Electricity costs and net payback use this estimate and the selected operating time; they exclude unlisted site equipment.
| Auxiliary Equipment | Quantity | Per Unit | Total |
|---|---|---|---|
| AR21 pump (published rating) | 3 | 0.45kW | 1.35kW |
| AR21 external cooler fan (published rating) | 3 | 0.75kW | 2.25kW |
| Controls allowance (estimate, not a published rating) | 3 | 0.1kW | 0.3kW |
Each independent AR21 kit serves four standard S21 Hydro miners. No shared cooler or pooled spare capacity is assumed.
- Per-rack Miner Design Load
- 21.44kW
- Per-rack Design Total
- 22.74kW
- Planning Reserve
- 1.2kW
- Published Maximum
- 24kW
The design check adds 5% miner-power tolerance and retains a 5% reserve against the published 24kW rack maximum. This verifies the catalogue configuration within that reference envelope; it is not approval of a customer’s electrical installation or a guarantee of cooling at every ambient temperature.
Electrical Requirements
Each rack serves four S21 Hydro 319TH miners at the standard 5104W setting. AR21 and miners require 380–415V three-phase, 50–60Hz. The rack specification lists 63A input; the later S21 manual lists 12A maximum per miner. An installer must verify delivered branch connectors, protective devices, earthing, circuit ratings and upstream supply before energising. No phase current or usable supply capacity has been invented from the kW total. Design allowance: +5% miner power, 1.3kW estimated auxiliaries and 1.2kW reserve per rack, all checked against a conservative 24kW overall planning ceiling.
Cooling Requirements
One independent pump/cooler circuit per rack; four standard Hydro miners, not U2/U3 chassis. S21 requires 8–10L/min per miner, matching AR21’s published 32–40L/min total; confirm that flow through each branch at commissioning, with pressure no more than 3.5bar. Use manufacturer-approved 10% organic antifreeze with pH 7.8–8.5, within the later S21 manual’s antifreeze pH range. Initial conductivity below 20µS/cm; replace at 100µS/cm. Keep miner inlet coolant within 20–50°C. AR21 publishes −20 to 40°C ambient and a 5m cabinet-to-cooler distance; actual antifreeze freeze protection and heat rejection must suit the site. Place each external cooler outdoors with unobstructed airflow; verify sustained inlet temperature at full load. These limits are conditions, not a guarantee of rated output at every ambient temperature.
Included Equipment & Site Connections
12x Antminer S21 Hydro 319TH miners and 3x Bitmain ANTRACK AR21 OEM kits. Each AR21 kit includes its mining cabinet with 450W-rated circulation pump and a separate external cooler with a 750W-rated fan. Those pump/cooler assemblies are part of the rack line price, not additional equipment charges. Equipment supply only. Coolant fill, cabinet-to-cooler connecting hoses and fittings, any additional miner adapters or replacement leads, upstream distribution, protective devices, site power/network cables, mounting/site works, installation and commissioning are excluded unless separately itemised. Supplied small accessories and connector revisions must be checked against the delivered packing list before installation. Do not assume unlisted items are included. Existing AER delivery allowances are included once; additional site-specific freight is excluded.
Mining Earnings & Block Odds
Scenario, odds & assumptions
Constant-condition scenario, not a forecast. 100% operating time, £0.000/kWh, 2% pool service fee and 0% Solo service fee. Fees are editable assumptions; confirm your chosen provider’s charges. Network transaction rewards are included in the shared source estimate.
Operating power 65.15kW includes 3.9kW auxiliaries. Miner quantities are fixed. Auxiliary inputs must cover the listed cooling equipment.
Estimated power includes published pump/fan ratings and a 100W controls allowance per rack. That allowance is not a measured or manufacturer-rated load. See Power Consumption & Installation Requirements for the complete calculation.
Bitcoin equivalent is a display conversion of the selected mining routes, not a claim that the hardware mines Bitcoin. Recorded Bitcoin price £62,494.65 at 2026-10-21T10:08:09+00:00.
Auto selects the highest expected annual return after the entered fees and operating electricity for each algorithm. Equipment cost is fixed for the selected configuration. A higher expected Solo return does not mean a reliable payout.
- eCash Expected Blocks / Year
- 4,835.167979
- At Least One Block
- ≈100%
- No Blocks
- <0.0001%
- Block Value
- £9.06
Block probabilities use this fleet’s actual hashrate over the selected timeframe. Fractional expected blocks are a statistical average, not part of a block paid to you.
Excludes hosting, maintenance, taxes, finance and other operating charges not explicitly entered. Prices, difficulty, rewards and uptime can change. Network inputs: . Calculated .
| Asset / Mode | Expected Earnings |
|---|---|
| SHA-256 · eCash · Solo | £43,797.68 |
| SHA-256 · Quai · Solo | £41,811.15 |
| SHA-256 · Fractal Bitcoin · Solo | £40,535.04 |
| SHA-256 · Bitcoin Cash · Pool | £39,759.95 |
| SHA-256 · Bitcoin Cash · Solo | £39,571.43 |
| SHA-256 · eCash · Pool | £39,340.97 |
| SHA-256 · Bitcoin · Solo | £39,190.23 |
| SHA-256 · Fractal Bitcoin · Pool | £38,323.46 |
| SHA-256 · Bitcoin · Pool | £37,750.57 |
| SHA-256 · Bitcoin · Pool | £37,673.62 |
| SHA-256 · Quai · Pool | £36,835.67 |
| SHA-256 · DigiByte · Solo | £32,537.75 |
| SHA-256 · DigiByte · Pool | £28,114.13 |
Equipment Scope & Site Requirements
12x Antminer S21 Hydro 319TH miners and 3x Bitmain ANTRACK AR21 OEM kits. Each AR21 kit includes its mining cabinet with 450W-rated circulation pump and a separate external cooler with a 750W-rated fan. Those pump/cooler assemblies are part of the rack line price, not additional equipment charges.
Equipment supply only. Coolant fill, cabinet-to-cooler connecting hoses and fittings, any additional miner adapters or replacement leads, upstream distribution, protective devices, site power/network cables, mounting/site works, installation and commissioning are excluded unless separately itemised. Supplied small accessories and connector revisions must be checked against the delivered packing list before installation. Do not assume unlisted items are included. Existing AER delivery allowances are included once; additional site-specific freight is excluded.
- Miners and exact supply batch — see the itemised schedule.
- Rack, tank or container and chassis compatibility — included only if expressly itemised; otherwise excluded.
- Pumps and coolant distribution — included only if expressly itemised; otherwise excluded.
- Dry cooler or heat exchanger — included only if expressly itemised; otherwise excluded.
- Immersion fluid or approved hydro coolant — included only if expressly itemised; otherwise excluded.
- Pipework, valves and connections — included only if expressly itemised; otherwise excluded.
- Electrical distribution, protection and cabling — included only if expressly itemised; otherwise excluded.
- Networking, commissioning and site work — included only if expressly itemised; otherwise excluded.