M
MicroBT
SHA-256 · Released 2023-Q4

WhatsMiner M66S

SHA-256· Mines BTCBTC
Verdict at your rate
NOT PROFITABLE
at /kWh
Daily profit
-$10.58
at $0.080/kWh
Payback
Never
to recover hardware
Hardware price
$4,999
best vendor price
Hashrate298 TH/s·Power5,513 W·Efficiency18.5 J/TH·AlgorithmSHA-256·Released2023-Q4
Profitability

At your electricity rate

Electricity rate
$0.080/kWh
$0.03$0.08 (hosted)$0.16 (US avg)$0.30
Profit per day
-$10.58
Annual ROI
Break-even Never
Revenue
$0.00
Coins mined × price
Electricity
-$10.58
5.51 kW × 24h × $0.080
Revenue vs Cost (daily)
Rev $0.00
Cost $10.58
Gross margin: · Breaks even at $0.000/kWh
Break-even timeline

Path to profitability

Cumulative net P/L over 24 months from purchase date

Day 06mo12mo18mo24mo$0$0
Day 0
-$4,999
Never
$0
12 months
-$8,863
24 months
-$12,726
Specifications

Full spec sheet

Identity
ManufacturerMicroBT
AlgorithmSHA-256
CoinsBTC
Release2023-Q4
Performance
Hashrate298 TH/s
Power5,513 W
Efficiency18.5 J/TH
Hardware
Noise50 dB
Weight18,000 kg
Dimensions267 x 147 x 401 mm
Voltage
Temperature5-40°C
Market Data
Estimated Price$4,999
MSRP$5,750
Price SourceMedian of 1 vendor listings on asicminervalue.com (low: $4999)
Last VerifiedMay 12, 2026
Investor scenario

12-month projection

Stress-test returns against difficulty ramps and price swings

Coin price / mo
+0%
Network / mo
+1.5%
Uptime
97%
Facility load
5%
Fixed OpEx
$0 / mo
Resale
30%
12M net
-$3,410
Payback
Never
Avg $/day
-$9.34
Scenario
Base
Historical performance

Daily profit, last 90 days

Based on modeled market conditions and a constant $0.08/kWh rate.

-$9.87-$11.93Today-90d
90D AVG · -$10.58
-$10.58
90D HIGH · -$9.87
-$9.87
90D LOW · -$11.93
-$11.93
TREND · ↑
+13.2%
FAQ

Common questions

NOT PROFITABLE$0.080/kWh
Daily profit
-$10.58
PaybackNever
Est. price: $4,999
ESCROW.COM
Buyer protection on purchases over $1,000
Available from
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At a glance
Break-evenNever
Annual ROI
Max rate
Cost / BTC$∞
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