Antminer S21 Imm optimized firmware

Performance and overclocking

  • High performing Antminer S21 Imm firmware to get the most out of the hardware
  • Overclock the Antminer to reach higher hash rates
  • Underclock the Antminer for lower power usage

More profit

  • Improved power efficiency by tuning of each individual ASIC chip
  • Easy to use presets for overclocking and underclocking - making it easy to get the preferred hash rate and power usage

Feature highlight

  • Sleep mode to pause the mining and consume very little power
  • Flexible by allowing manual tuning and many configuration settings
  • Immersion cooling support
  • Find a miner via LED flash

Awesome Miner integration

  • Use the Awesome Miner management software at no additional cost
  • Install and upgrade the firmware via Awesome Miner
  • The Antminer S21 Imm firmware features can be accessed via Awesome Miner
  • Operations can be performed on a large number of miners at once

Antminer S21 Imm firmware downloads

Documentation

Antminer models supported by the Awesome Miner firmware

L3+, L3++ L7 S17, S17 Pro S17+ S19 S19a S19a Pro S19e XP Hydro S19 Hydro S19i S19j S19j Pro S19j Pro A S19j+ S19j Pro+ S19j XP S19k Pro S19 Pro S19 Pro A S19 Pro Hydro S19+ S19 Pro+ Hydro S19 XP S19 XP Hydro S19 126 S19 88 S21 S21 Hydro S21 Imm S21 Pro S21 XP S21 XP Hydro S21 XP Imm S9, S9i, S9j T17 T17+ T19 T19 Hydro T19 Pro Hydro T21 T9+

Antminer S21 Imm hash rate presets

The Awesome Miner Antminer firmware includes a number of preconfigured options for hash rate, making it easy to get the performance and power usage you want.

Hash ratePower usage
92 TH/s1630 W
101 TH/s1800 W
109 TH/s1960 W
118 TH/s2120 W
127 TH/s2280 W
136 TH/s2440 W
145 TH/s2610 W
154 TH/s2770 W
163 TH/s2930 W
172 TH/s3090 W
181 TH/s3250 W
190 TH/s3420 W
199 TH/s3580 W
208 TH/s3740 W
217 TH/s3880 W
226 TH/s4050 W
235 TH/s4210 W
244 TH/s4370 W
253 TH/s4530 W
262 TH/s4690 W
271 TH/s4860 W
280 TH/s5020 W
289 TH/s5180 W
298 TH/s5340 W
307 TH/s5500 W
315 TH/s5670 W
324 TH/s5830 W
333 TH/s5990 W
342 TH/s6150 W
351 TH/s6310 W
360 TH/s6480 W

Frequently Asked Questions

Why is the miner restarting itself?

When selecting a mining profile for the first time the firmware will reboot the Antminer a number of times during the next 1 - 2 hours as part of the auto tuning - the process where the firmware optimizes the performance of each individual ASIC chip.

What is the mining fee?

The firmware has a built-in mining fee to support the development of the firmware. The goal of the firmware is to provide significantly better hashrate performance, more features and improved Awesome Miner integration, making the mining fee very affordable.

The mining fee is 2.8%. Example: With a total hash rate of 100 TH/s and 2.8% mining fee, no more than 2.8 TH/s will be used for the mining fee.

The mining fee consist of two pools named DevFee that are running mining in parallel. These two pools are working with a very low difficulty level, resulting in a high number of accepted shares. A high number of shares doesn't indicate that the DevFee pools are taking all hashrate - it's a result of the low difficulty level for each of the shares.

Please contact us for additional information about the firmware.