Bitmain Antminer L11 Pro (21GH)

0.172 J/MH (172 J/GH) at 21 GH/s and 3,612W continuous. Approximately 7 percent better than the standard L11 at 0.184 J/MH and 18 percent better than the L9 at 0.21 J/MH. Among current air cooled Scrypt ASICs, only the Bitdeer SEALMINER DL1 Air at 149 J/GH exceeds it on pure efficiency per gigahash.

Yes. Scrypt merged mining produces Litecoin (LTC), Dogecoin (DOGE), and Bellscoin (BELLS) simultaneously from the same 21 GH/s hashrate. Luckycoin, Junkcoin, and Pepecoin also merge mine at varying pool support. Combined revenue typically runs 20 to 40 percent above solo LTC at the same hashrate.

The Pro delivers 21 GH/s at 3,612W versus the standard L11 at 20 GH/s at 3,680W from physically identical hardware. Bitmain bins better performing BM1485 chips into Pro units and lower performing chips into standard units. Result: 5 percent more hashrate and 68W less power, compounding to roughly 6 to 8 percent better per unit daily economics at equal electricity rates.

220 to 277V single phase with approximately 20A maximum current. At 3,612W, the unit draws approximately 16.4 amps at 220V. Standard commercial 220 to 240V service required, or 220V outlets like those used for electric dryers and EV chargers. Cannot practically run at 110V residential since 3,612W at 120V would require approximately 30 amps. MM's page references 100 to 240V universal, which may reflect PSU input tolerance rather than full rated performance voltage.

Scrypt merged mining delivers LTC, DOGE, and BELLS simultaneously from the same hashrate, so DOGE is one of three revenue streams. Combined merged revenue typically runs 20 to 40 percent above solo LTC. Unit level profitability depends on electricity cost, market prices, and network difficulty. Model at your specific power rate using current network data before deployment.

Four fan air cooling with front intake and rear exhaust. No external water loops or immersion. Facility requirements: ventilation for approximately 12,325 BTU per hour heat output, adequate intake and exhaust air, ambient temperature within the specified range. Internal temperature sensors manage fan RPM and hashrate throttling under thermal stress.

Yes. Box contents: Antminer L11 Pro, PSU sized for the 3,612W rated load, power cables, and quick start guide. Contents may vary by batch, exact items in order confirmation.

Yes. MillionMiner hosting services accept L11 Pro units at managed facilities with 220 to 277V infrastructure. Hosting combines facility costs with mining revenue to produce net monthly returns. Contact MillionMiner for hosting rate tiers and availability.

Bitmain manufactures BM1485 chips on a single production process that produces chips across a natural quality distribution. Better performing chips (higher frequency at lower voltage) go into Pro units. Lower performing chips go into standard L11 units. No physical hardware difference exists beyond silicon binning across the 288 chip assembly.

L9 at 17 GH/s, 3,570W, and 0.21 J/MH. Standard L11 at 20 GH/s, 3,680W, and 0.184 J/MH. L11 Pro at 21 GH/s, 3,612W, and 0.172 J/MH. L9 to L11 Pro delivers 24 percent more hashrate at essentially flat power and 18 percent better efficiency. Standard L11 to L11 Pro delivers 5 percent more hashrate and 68W less power from identical hardware.

DL1 Air at 25 GH/s, 3,725W, and 149 J/GH delivers approximately 19 percent more hashrate per unit and 13 percent better efficiency per gigahash than the L11 Pro. The L11 Pro delivers Bitmain's mature firmware ecosystem, broader operator familiarity, and deeper third party firmware compatibility. Operators committed to Bitmain's ecosystem choose the L11 Pro. Operators willing to deploy second source hardware with better efficiency choose the DL1 Air.

400 x 195 x 290 mm chassis. Weight approximately 15.8 kg per most distributor documentation. MillionMiner's page lists 20 kg which may reflect complete shipping weight with PSU and packaging.

Depends on voltage, noise, and thermal capacity. Voltage: requires 220 to 277V not standard 110V residential. Homes with 220V appliance outlets (dryers, EV chargers) can deploy with appropriate circuits. Noise: 75 dB exceeds comfortable household levels and requires dedicated mining space. Thermal: 3,612W requires ventilation or HVAC. For quiet home Scrypt mining, Fluminer L3 or Fluminer L1 Pro are more appropriate.

75 dB industrial noise from four cooling fans. Comparable to a vacuum cleaner or busy restaurant. Disruptive through walls. Requires sound isolated deployment space: dedicated mining room, garage, outbuilding, warehouse. Not suitable for residential proximity without sound containment.

MM specifies 5 to 45 degrees Celsius at 5 to 95 percent humidity. Alternative distributor documentation specifies broader 0 to 75 degrees Celsius tolerance. The conservative range represents optimal operating conditions. For hot climate deployments, facility cooling must hold intake air below 40 degrees Celsius under peak load.

Four step setup. Verify 220 to 277V single phase circuit capable of 3,612W continuous (20 amp minimum). Connect PSU to miner and to outlet. Connect Ethernet. Find miner IP, open Bitmain web interface, configure Scrypt merged mining pool URL and LTC/DOGE/BELLS wallet addresses, change default credentials. Verify hashrate reaches 20+ GH/s within 10 minutes.

Major Scrypt merged mining pools accept L11 Pro hashrate including F2Pool, Poolin, ViaBTC, Prohashing, Litecoinpool. Pool fees typically 0.5 to 2 percent. Verify Bellscoin support before deployment since not all Scrypt pools have added BELLS.

Third party Scrypt firmware support is less mature than SHA-256. Most L11 Pro operators run stock Bitmain firmware. Some BraiinsOS style tuning targets earlier Scrypt hardware but L11 Pro specific deployment is limited. Plan for stock firmware operation.

Pro factors: highest output air cooled Scrypt miner in Bitmain's lineup, better binned chips compound to 6 to 8 percent better economics over standard L11, mature firmware ecosystem, merged mining revenue advantage. Con factors: 75 dB requires dedicated space, 220 to 277V excludes standard residential, Bitdeer DL1 Air delivers better efficiency at cost of less ecosystem maturity. For operators committed to Bitmain's ecosystem with industrial or commercial deployment space, the L11 Pro delivers the strongest air cooled Scrypt position.

For algorithm diversification: Antminer S21 XP (270 TH/s), S23 (318 TH/s), or S23E Hyd 2U (865 TH/s) cover SHA-256 Bitcoin. Antminer KS7 (45 TH/s) covers Kaspa KHeavyHash. Within Bitmain's Scrypt family: standard L11 (20 GH/s) for lower tier deployment, hydro L11 HU6 (33 GH/s) and L11 Hyd 2U (35 GH/s) for facilities with hydro infrastructure. For quiet Scrypt on separate infrastructure: Fluminer L3 (9.5 GH/s, 45 dB) or Fluminer L1 Pro (6 GH/s, 45 dB). Bitdeer SEALMINER DL1 Air (25 GH/s) provides vendor diversification with better efficiency per gigahash. MillionMiner's ASIC hosting service covers turnkey L11 Pro deployment without facility CapEx.