In North America, with an industrial electricity price of $0.08 per kilowatt-hour, the electricity bill for 10,000 S19j Pro units running for one year would be $14 million. Among this, 3% is lost in the distribution process - $420,000 evaporates out of thin air. Shenzhen Xunhong Technology uses a 1.8-meter-long intelligent PDU to reduce the loss from 3% to 1.9%, directly saving customers $300,000, and offering an additional 'invisible red packet' of $50,000.
1. How much does a copper bar cost?
Traditional PDUs use 2.5 mm² copper wires and screw crimping, with a contact resistance of 0.65 mΩ; Xunhong uses 160 mm² copper bars and resistance welding, with a contact resistance of 0.42 mΩ. The difference is 0.23 mΩ. In a 240 V 320 A circuit, this results in a reduction of 1,680 kWh of heat generated annually, equivalent to $135. For a full container with 42 nodes, the savings amount to $5,670. For 10,000 nodes? $530,000. The money saved is enough to purchase an additional 150 new mining machines.
2. Millisecond-level circuit breaker, reducing 'downtime of 10 minutes' to 'downtime of 10 milliseconds'
The mining farm is most vulnerable to high-temperature sparking. Xunhong has embedded 75°C hot-melt alloy and a lightning protection module at the plug end, with a response time of 5 ms. The measured residual voltage under a 6 kV surge by UL is 760 V, which is below the 1,000 V voltage tolerance limit for mining machines. In July 2024, a 120 MW mining farm in Dezhou suffered from 11 kV grid fluctuations, and 1,200 PDUs completed segmented tripping within 10 ms. Only 3 computing boards were damaged on site, resulting in a loss of $180,000 compared to the adjacent mining farm.
3. API direct connection to mining pool, load imbalance alarm within 0.1s
Equipped with a 0.5-level electricity meter chip, it refreshes current and power factor every 100 ms. Data is pushed to the mining pool management system via SNMP/HTTP, and an automatic pop-up appears if the deviation exceeds ±3%. In actual testing, it captured 7 single-phase overloads over 48 hours, avoided 2 trips in advance, and saved $80,000 in revenue.
4. Delivery speed = Cash flow
The mining machine goes online one day earlier, mining an additional 0.0003 BTC. Xunhong's modular design features snap-in sockets, switches, and copper bars. It takes 5 days to produce drawings, 10 days for prototypes, and 25 days for mass production. This is 50% shorter than the industry average of 50 days. With 10,000 mining machines connected to the grid 25 days earlier, calculated at $30,000 per BTC, an additional $2.25 million is earned.
5. One-sentence summary from the customer
'For the same 10,000 machine positions, after replacing with Xunhong PDU, the electricity bill is reduced by 300,000 in the first year, unexpected downtime is reduced by 50,000, and early grid connection is increased by 2.25 million, totaling 2.6 million US dollars. PDU only accounts for 0.8% of the initial investment, but contributes 18% of net profit. Even a primary school student can do the math.' - Chris Raymond, COO of Dezhou 120 MW Mine
ending
In an era where the entire network's computing power is so competitive that 'every milliwatt is accounted for in financial reports,' power distribution is no longer about 'just being able to use it,' but rather about 'how much can be saved, how much can be sped up, and how much can be stabilized.' Xunhong Technology has turned a 1.8-meter PDU into a 'money-making machine' with a 4.6-month ROI, allowing mining farm owners to still earn an additional $2.6 million in a year when both electricity prices and coin prices are slumping.
The money saved is the true power.
