What hashrate and efficiency does the Antminer S9 deliver?

14 TH/s of SHA-256 hashrate at 1,372W measured at the wall, an efficiency of 98 J/TH. Bitmain rated the hashrate at plus or minus 5 percent, and the power figure assumes the APW3 class PSU at around 93 percent efficiency and 25 degrees Celsius ambient, so expect some variance in practice. The 14 TH/s batch was the fastest version of the S9, built on 189 BM1387 chips at 16nm.

Can the Antminer S9 still mine Bitcoin profitably?

Not at ordinary electricity prices. At 98 J/TH the S9 uses roughly ten times the energy per terahash of current generation hardware, so at typical residential or commercial rates the power it consumes costs more than the Bitcoin it produces, and it runs at a loss regardless of how little you paid for the machine. It only breaks even where electricity is close to free: off grid solar with surplus generation, curtailed or flared energy, or heat recovery setups where you were going to pay for the heat anyway. Anyone buying an S9 expecting mining income at a normal tariff will be disappointed, so run your own rate through the live calculator before ordering.

Who actually buys an Antminer S9 today?

Four groups, none of them chasing mining income. People learning how mining works, who want real hardware, a real pool connection and a real payout flow at the lowest possible entry cost. Solo mining hobbyists treating a small hashrate as a lottery ticket, where the odds of finding a block are tiny but the stake is small. Heat recovery projects, since every watt becomes usable warmth and the mined Bitcoin offsets part of a heating bill you would have paid anyway. And operators with genuinely free or stranded power who can absorb the efficiency penalty. If you are in one of those groups the S9 makes sense, and if you are not, buy current generation hardware instead.

What power supply and voltage does the S9 need?

The miner itself runs on 11.6 to 13.0V DC, which is why it needs a dedicated ASIC power supply rather than plugging straight into the wall. The PSU is included with this listing. Bitmain's APW3++ class supply is the standard match, and it feeds the machine through ten 6 pin PCIe connectors: three per hashboard on all three boards, plus one for the control board. Every hashboard needs all three of its connectors populated, and you must never feed one hashboard from two different power supplies. The PSU itself takes 200 to 240V AC for full output, and while some units accept 110 to 120V they deliver reduced power at that voltage, so plan a 240V circuit if you want the full 14 TH/s.

How loud is the S9 and where should I run it?

Loud enough that it is not a living space machine. The two 12038 fans run at high speed and published figures for the S9 family range from about 76 dB to 85 dB depending on variant and fan batch, with real world measurements typically in the high 70s to mid 80s, comparable to a vacuum cleaner running continuously. Add 1,372W of heat, roughly 4,700 BTU per hour, and you need a garage, basement, workshop, outbuilding or dedicated equipment room with real airflow. Keep intake temperature inside the operating range and never let hot exhaust recirculate into the intake, because these 16nm chips are temperature sensitive and overheating is the most common cause of failure on this generation.

Which coins can the S9 mine?

Any SHA-256 proof of work chain. Bitcoin (BTC) is the usual target, with Bitcoin Cash (BCH), Bitcoin SV (BSV) and Fractal Bitcoin as alternatives, plus smaller SHA-256 chains such as Peercoin, Terracoin, Curecoin and DigiByte's SHA-256 chain. It cannot mine Scrypt coins like Litecoin, KHeavyHash coins like Kaspa, or anything outside SHA-256. Some hobbyists point an S9 at a smaller SHA-256 chain where 14 TH/s is a more meaningful share of network hashrate than it is on Bitcoin.

How do I set up the Antminer S9?

Four steps. Connect the PSU to the miner, making sure all three PCIe connectors are populated on each hashboard and one on the control board, then plug into a suitable outlet. Connect the Ethernet cable to your router or switch. Find the miner's IP through your router's admin page or an IP scanner. Open the web interface, change the default credentials immediately, enter your pool URL and Bitcoin wallet address, and start mining. Hashrate should settle near 14 TH/s within a few minutes once the chips reach operating temperature. The S9 uses the classic Antminer interface, which is the same workflow every later Antminer follows, and that familiarity is part of why it remains a good machine to learn on.

What should I check when buying a used S9?

Ask for a screenshot of the miner status page showing all three hashboards detected with full chip counts, a hashrate near 14 TH/s under sustained load rather than at startup, and chip temperatures within range. A board reporting fewer chips than it should is the classic sign of a unit that has been run hot. Ask what PSU is included and whether it is a genuine APW3 class supply rated for the load, since a marginal PSU is the second most common source of trouble. Ask about hours run and storage conditions, because units stored damp corrode. Given the machine's age, expect to treat fans and thermal paste as consumables, and buy from a seller who tests before shipping rather than a private listing sold as seen.

Can I use the S9 as a Bitcoin space heater?

Yes, and it is one of the more sensible remaining uses. Every watt drawn becomes heat, so 1,372W of consumption is 1,372W of heating, roughly 4,700 BTU per hour, the same output you would get from a small electric heater at the same power draw. The difference is that the S9 pays back a fraction of that electricity in mined Bitcoin, so during heating season the effective cost of the warmth drops. The catch is noise: the S9 is far too loud for a room you occupy, so heat recovery setups usually duct the exhaust from a garage, utility space or enclosure into the space being warmed rather than putting the machine in it.

What should I buy instead if I want to mine for profit?

Current generation hardware, without exception. The air cooled S21 family runs roughly 200 to 270 TH/s at 13 to 17 J/TH on a single phase 240V circuit, which is the realistic starting point for anyone who wants mining to pay for itself, and the S19k Pro at 23 J/TH is a cheaper entry that still sits in a different league from the S9. If you have three phase power and a cooling loop, the S23 Hydro at 580 TH/s and 9.5 J/TH leads the market on efficiency. The S9 belongs to a different category of purchase entirely: it is a learning tool, a heater and a hobby machine, not an investment in hashrate. MillionMiner hosting is worth asking about for any of the current generation options.

Buy Antminer S9 14TH Bitcoin Miner

Daily	Monthly	Yearly
$0.55	$16.50	$200.75
-$1.65	-$49.50	-$602.25
-$1.10	-$33.00	-$401.50

The Bitmain Antminer S9 delivers 14 TH/s of SHA-256 hashrate at 1,372W measured at the wall, an efficiency of 98 J/TH. Bitmain rated hashrate at plus or minus 5 percent, and the power figure assumes an APW3 class power supply at around 93 percent efficiency in a 25 degrees Celsius environment, so real installations vary. Inside are 189 BM1387 chips across three hashboards on a 16nm process, the design that made the S9 the most produced Bitcoin miner of its era and the machine most people who mined between 2016 and 2020 actually learned on. Power and setup. The miner runs on 11.6 to 13.0V DC, which is why it needs a dedicated ASIC power supply rather than a wall plug, and the PSU is included… here. An APW3++ class supply feeds the machine through ten 6 pin PCIe connectors: three on each of the three hashboards plus one for the control board. All three connectors on a board must be populated, and a single board must never be fed from two different supplies. The PSU itself wants 200 to 240V AC for full output; some units accept 110 to 120V but deliver less power there, so a 240V circuit is the right plan if you want the full 14 TH/s. Setup is four steps: connect the PSU, connect Ethernet, find the miner's IP through your router or an IP scanner, then open the web interface, change the default credentials, and enter your pool URL and Bitcoin wallet. Physical and environmental. The chassis is 135 x 158 x 350 mm and 4.2 kg, small and light enough to sit on a shelf, cooled by two 12038 fans that make this a genuinely loud machine, with published figures across the S9 family ranging from about 76 to 85 dB and real world measurements typically in the high 70s to mid 80s. All 1,372W becomes heat, roughly 4,700 BTU per hour. These 16nm chips are temperature sensitive and overheating is the most common failure mode on this generation, so keep intake air inside the operating range and never let hot exhaust recirculate. A garage, basement, workshop or outbuilding suits it; a living space does not. Where the S9 stands today. At 98 J/TH it consumes roughly ten times the energy per terahash of current generation hardware, and it does not cover its own electricity cost at ordinary residential or commercial rates, which is the honest starting point for anyone considering one. It earns its place in four situations instead: learning mining on real hardware at minimal cost, solo mining as a low stake lottery ticket, heat recovery where the warmth was going to be paid for anyway, and sites with free or stranded power such as surplus solar or curtailed generation. Anyone buying hashrate as an investment should look at current generation machines instead. Every Antminer S9 ships from MillionMiner with its power supply, power cables and quick start guide, with free DDP worldwide delivery covering customs clearance, duties and taxes.