Is the Antminer S9 still worth it in 2026?

Only if your electricity is very cheap or you want the heat anyway. At 100 J/TH, most home electricity prices cost more than the S9 earns.

Can I run an Antminer S9 at home?

It works on household power, but it draws about 1.35 kW non-stop and is as loud as a vacuum cleaner. A garage or basement with a dedicated circuit is best.

Which settings do I enter for DirectPool?

In the web interface, Pool 1 URL stratum+tcp://stratum.directpool.io:3333, Worker your bc1 address plus .worker, Password x. Save & Apply.

Does the S9 come with a power supply?

The miner itself does not. Most used units come with an APW3++ supply, but check the listing.

How much electricity does it use?

About 11,800 kWh a year at 1,350 W, so about 2,370 a year at 0.20 per kWh.

Can I make the S9 quieter or more efficient?

Third-party firmware such as Braiins OS can underclock it to use less power and run the fans slower, at the cost of hashrate.

Full-size ASICs

Antminer S9 (used)

by Bitmain, 189x BM1387

The Antminer S9 is Bitmain's 2016 industrial Bitcoin miner, now sold used for very little. It hashes about 13.5 TH/s on about 1,350 W, roughly 100 J/TH, at 76 dB. It needs a separate power supply and Ethernet. It mines fine on DirectPool, but electricity costs usually exceed rewards.

Published October 5, 2026. Updated October 5, 2026

Parts of the Antminer S9 (used), numbered as in the drawing
Item	Part	From the specs
1	Cooling	Two 120 mm fans. About 76 dB, like a vacuum cleaner
2	Case	350 x 135 x 158 mm, 4.5 kg without PSU
3	Hashing chips	189x Bitmain BM1387 (63 per hashboard, 3 boards)

Key figures

Hashrate: 13.5 TH/s
Power: 1350 W
Efficiency: 100 J/TH
Price range: $30 to $120

Availability: mostly found used.

Specifications

Hashrate: About 13.5 TH/s (13 to 14 TH/s versions exist)
Power draw: About 1,350 W at the wall (13.5 TH/s version)
Efficiency: About 100 J/TH
Chip: 189x Bitmain BM1387 (63 per hashboard, 3 boards)
Cooling and noise: Two 120 mm fans. About 76 dB, like a vacuum cleaner
Connectivity: Ethernet (RJ45) only
Power supply: Separate 12 V PSU, usually the Bitmain APW3++. Check that a used unit includes one
Size and weight: 350 x 135 x 158 mm, 4.5 kg without PSU
Open source: No. Third-party firmware such as Braiins OS is available
Release year: 2016
Firmware: Bitmain stock firmware, or third-party firmware

Good and less good

Good

Very cheap to buy used, sometimes almost free.
Over ten times the hashrate of a Bitaxe Gamma, and a useful 1.3 kW heater in winter.
Huge community knowledge, spare parts and third-party firmware.

Less good

About 100 J/TH: roughly five times less efficient than an Antminer S21. Electricity usually costs more than it earns.
About 11,800 kWh a year if run non-stop.
Very loud (76 dB) and hot.
Old hardware: hashboards, fans and PSUs fail more often. Test before buying.

Set it up on DirectPool

The S9 is configured from the web page at its IP address. It has no screen, so you find the IP in your router.

Type exactly this

Pool 1 URL: stratum+tcp://stratum.directpool.io:3333
Pool 1 Worker: your_bc1_address.worker_name
Pool 1 Password: x

Choose your mining region

Showing Europe, Lithuania (main server).

Changing the location only changes the address shown above. Copy it into your miner settings and restart or reconnect the miner. Miners already connected stay where they are. Every server mines the same pool, with the same payouts.

Browser ping, measured live from this page

Europe, Lithuania...

North America, Chicago...

Asia, Jakarta...

This measures your browser connection, not your miner or the full relay-to-pool path.

Replace your_bc1_address with a Bitcoin address you control (bc1 or 3). The part after the dot is a name for this machine, so you can tell your miners apart. Addresses starting with 1 are not accepted.

1.Connect the miner to your router with a network cable. Antminers have no WiFi.
2.Find its IP address in your router's device list (or with Bitmain's IP Reporter tool and the IP Report button on the control board).
3.Open that address in a browser on the same network and log in. The default username and password are both root.
4.Open the pool settings page (Miner Configuration on older firmware, Settings or Pool on newer).
5.Enter the values above in Pool 1. Pools 2 and 3 are backups.
6.Click Save & Apply (or Save). The miner restarts its mining process; hashrate shows on the status page after a few minutes.

Common mistakes

Leaving out stratum+tcp:// or :3333. The Antminer URL field takes the full address.
Keeping the default root password. Change it, since anyone on your network could otherwise redirect your hashrate.
Typing the Bitcoin address by hand in the Worker field. Copy and paste it.
Plugging it into a normal household circuit without checking the load. These machines draw well over a kilowatt non-stop.
Buying one without a power supply. The S9 runs on 12 V DC from a separate PSU and cannot plug into the wall directly.
Running it in a living space. At 76 dB it is too loud for most homes outside a garage or basement.

After a few minutes, paste your address on the pool page to see the machine. Small miners can take a while to send their first share.

Your odds with this miner

Miner13.5 TH/s

Network difficulty: Loading
DirectPool, 1 h avg: Loading
Next block value: Loading

Chance of finding at least one block, with 13.5 TH/s

	Solo	With DirectPool
Per day
Per month
Per year

If DirectPool finds a block, this miner would get about

These are chances, not schedules. Hashing has no memory: a miner that has not found a block is not closer to one. Open the full calculator

Electricity cost

Running all year at about 1,350 W, the Antminer S9 (used) uses about 11,834 kWh a year.

Price per kWh	Per year	Per month
0.10	1,183	99
0.20	2,367	197
0.30	3,550	296

Same currency as your electricity price (dollars, euros, pounds). Real draw depends on firmware settings and frequency.

Where to buy

D-Central Technologies (refurbished Antminer S9)Ships to: Canada, ships worldwide
D-Central Technologies (S9 as-is, for parts or projects)Ships to: Canada, ships worldwide
Local marketplaces (used)Ships to: Varies
Ask to see it hashing and check that the PSU is included.

Typical price $30 to $120, checked October 5, 2026. Prices move, check the store. Plain store links. We earn nothing from them.

Questions

Is the Antminer S9 still worth it in 2026?: Only if your electricity is very cheap or you want the heat anyway. At 100 J/TH, most home electricity prices cost more than the S9 earns.
Can I run an Antminer S9 at home?: It works on household power, but it draws about 1.35 kW non-stop and is as loud as a vacuum cleaner. A garage or basement with a dedicated circuit is best.
Which settings do I enter for DirectPool?: In the web interface, Pool 1 URL stratum+tcp://stratum.directpool.io:3333, Worker your bc1 address plus .worker, Password x. Save & Apply.
Does the S9 come with a power supply?: The miner itself does not. Most used units come with an APW3++ supply, but check the listing.
How much electricity does it use?: About 11,800 kWh a year at 1,350 W, so about 2,370 a year at 0.20 per kWh.
Can I make the S9 quieter or more efficient?: Third-party firmware such as Braiins OS can underclock it to use less power and run the fans slower, at the cost of hashrate.