Market snapshot · ↗Bitcoin price$77,735Network hashrate936 EH/sDifficulty127.45 T
BitmainBitmain Antminer S21 Hyd.
Product image supplied by the source catalogue; rights remain with its owner.

ASIC.TOOLS / Model overview

Bitmain Antminer S21 Hyd.

SHA-2562024Hydro cooling
Hashrate
335 TH/s
Power
5360 W
Mining calculator IP address & login

Manuals & firmware

Everything you need to set up and maintain this miner.

Check the model and control-board revision before installing.

Specifications

Algorithm
SHA-256
Coins in manufacturer specification
BTC / BCH / BSV
Hashrate
335 TH/s
Power
5360 W
Efficiency
16 J/TH
Cooling
Hydro
Input voltage
380–415 V AC · 3Φ
Dimensions, without packaging
339 × 163 × 207 mm
Net weight
12.3 kg
Coolant inlet temperature
35 °C · NEM
Connection
RJ45 Ethernet 10/100M

Network & access

Default IP / address mode
DHCP — no fixed default IP; the router assigns the address
Default username
root
Default password
root

How to find the miner

IP Reporter / IP Report button

Change the factory password immediately after first login. Firmware and used equipment may have different credentials.

Access data checked 14 September 2026 · Verification source ↗

Sources & configuration notes

One specified factory version is shown. Other batches may differ. Check the linked manual and device label before installation.

Hydro models require external cooling infrastructure. The calculator includes miner power only, excluding pumps and cooling equipment.

Catalogue data · checked 10 September 2026 · BITMAIN ↗

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