When available, this miner ships from supplier stock in Hong Kong to South African delivery addresses. We confirm availability during order processing. Allow 1–2 business days processing after verified payment plus 5–8 business days for delivery (6–10 business days total). Prices include VAT and import duties. Check the description for condition, warranty and power/cooling requirements. Contact dave@dcmining.co.za before ordering if included accessories or requirements are unclear.
MINER RETURNS AND WARRANTY Notify us within 7 calendar days after delivery for a change-of-mind return. Return the miner by arrangement to Dawin, 63 Wilson Street, Fairlands, Johannesburg, Gauteng, 2170, South Africa. You pay lawful direct domestic return freight; no overseas return is required for change of mind. Conditions and statutory exceptions are in our Refund and Return Policy.
No additional voluntary Dawin commercial miner warranty is included. Your order is covered by the terms agreed when you bought it. Your statutory rights still apply. Manufacturer coverage is offer-specific. Your statutory rights under South African law, including the Consumer Protection Act where applicable, remain unaffected. Contact Dawin before returning faulty or defective goods. Dawin bears return costs where required by law. Do not send a miner overseas without prior written arrangements. See our Miner Warranty and Repair Information.
Description
Product condition and availability
This listing is for the supplier-described BITMAIN Antminer S21++ 235 TH/s air-cooled SHA-256 miner, for compatible Bitcoin mining pools. It is kept separate from S21+ and other hashrates; a nearby model is not substituted automatically.
Miners are imported to order from Hong Kong, not held locally in South Africa. Exact unit identity, condition, supplier availability, package and installation requirements must be confirmed before purchase. If an order cannot be fulfilled as agreed, we will contact you with available options including cancellation and a refund for an unfulfilled order.
Technical specifications
Supplier-described model
BITMAIN Antminer S21++
Hashrate
235 TH/s
Algorithm / coin
SHA-256 / Bitcoin
Power consumption
approximately 3,878 W — vendor-listed reference
Power efficiency
16.5 J/TH — vendor-listed reference
Miner input voltage
220–277 V AC
Cooling
Air cooling
Network
Ethernet
Specifications above follow Zeus Mining’s S21++ reference, whose table lists the 235 TH/s configuration separately. S21++ is the supplier-described model name; it is not presented here as an independently verified official BITMAIN designation. Confirm the supplied unit’s revision and electrical nameplate before installation.
Mining results and installation
Install in a dry, ventilated location with unobstructed airflow and a suitable protected electrical circuit. Confirm unit electrical requirements, connection, noise and heat suitability before purchase. Use qualified installers where necessary.
Mining profitability and returns are not guaranteed. Results depend on coin prices, network difficulty, electricity costs, pool fees, uptime and operating conditions. Configure your own mining-pool account and payout details.
Package contents and required equipment
One BITMAIN Antminer S21++ 235 TH/s miner.
Power supply: Included in the selling price.
Power cables: Not included. Purchase compatible cables matched to the supplied unit and installation.
Package inclusions are separate from warranty coverage. Confirm any additional accessories before ordering.
Dispatch, delivery and price
Dispatch location: Hong Kong. Allow 1–2 business days processing after verified payment plus 5–8 business days delivery, 6–10 business days in total. Delivery is to South African addresses only. See our Shipping Policy.
Displayed product prices include VAT and import duties. South African delivery costs R270 for orders below R2,500 and is free from R2,500. Applicable delivery charges are shown at checkout.
Manufacturer warranty and Dawin support
Manufacturer eligibility and remaining coverage for the supplied reseller unit have not been verified and are not promised. Unverified manufacturer coverage does not mean confirmed absence of coverage. Generic direct-purchaser terms do not start a fresh warranty period from Dawin’s delivery.
Dawin does not include an additional voluntary commercial miner warranty. Any verified manufacturer or supplier cover will be disclosed before purchase, including provider, duration, claim and repair process, and freight arrangements. Earlier agreed rights remain unaffected. See our Miner Warranty and Repair Information or contact dave@dcmining.co.za.
Statutory rights and returns
Your rights under South African law, including the Consumer Protection Act where applicable, apply independently of any manufacturer or supplier warranty. Statutory faulty-goods claims may be brought directly to Dawin. Dawin bears statutory return costs where required by law.
Notify us within 7 calendar days after delivery for a change-of-mind return. These miner returns are arranged to Dawin, 63 Wilson Street, Fairlands, Johannesburg, Gauteng, 2170, South Africa. You pay lawful direct domestic return freight; no overseas shipment is required for a change-of-mind return. Conditions and statutory exceptions are explained in our Refund and Return Policy. Statutory rights are not conditional on unopened packaging.
Contact Dawin before returning faulty or defective goods so that the appropriate remedy and return arrangements can be confirmed. Optional paid repairs and freight require an itemised quotation and your agreement. Do not send a miner overseas without prior written arrangements. None of this limits your statutory rights or earlier agreed rights.
