Antminer Slim Edition

Description

Antminer Slim Edition

The Antminer Slim Edition is D-Central’s answer to a simple problem: where do you put a Bitcoin miner when you live in a 600-square-foot apartment? Standard Antminers are loud, bulky, and need 240V power. The Slim Edition strips all of that away. A custom 3D-printed chassis, premium silent fans, a Loki control board for 120V operation, and a single high-performance hashboard — all packed into a slim profile that fits on a bookshelf, beside a monitor, or tucked into a closet. Available in four hashboard variants spanning 26 to 44 TH/s, the Slim Edition delivers real SHA-256 mining power at 860-930W while doubling as a space heater. This is not a toy miner or a novelty device. This is industrial-grade Antminer silicon, re-engineered by D-Central Technologies — Bitcoin Mining Hackers since 2016 — to run quietly on a household outlet. Every Antminer Slim Edition is hand-assembled, firmware-tuned, and stress-tested for 24 hours in our Laval, Quebec workshop before it ships. Plug it in, point it at your pool, and start stacking sats.

Technical Specifications

Specification	Details
Algorithm	SHA-256 (Bitcoin)
Hashrate Range	26 — 44 TH/s (variant dependent)
Power Consumption	860 — 930W (variant dependent)
Efficiency	20.9 — 33.1 J/TH (variant dependent)
Noise Level	~55-60 dB (fan choice dependent)
Cooling	4x 120mm silent fans (Arctic P12 Max, Noctua NF-F12 iPPC 3000, or Gelid Gale-01)
Enclosure	Custom 3D-printed slim chassis (D-Central design)
Input Voltage	110 — 240V AC (runs on standard 120V outlets)
Max Wattage	1,200W absolute maximum — never exceed
Network	RJ45 Ethernet + WiFi adapter (Pixlink or Vonets) included
Firmware	VNish (pre-configured, fixed frequency profiles)
Control Board	Loki board by Pivotal Pleb (120V single-hashboard operation)
Power Supply	APW3++ (silenced, recycled, tested)
Operating Temp	0 — 40 C
Humidity	10 — 90% RH (non-condensing)
Warranty	90 days
SKU	DC-MINER-SLIM

Available Variants

Four hashboard options cover the full Antminer 19 and 21 series. All share the same slim chassis, Loki control board, and APW3++ PSU — the difference is the silicon inside.

Variant	Hashrate	Power	Efficiency	Notes
S19 Slim	26 TH/s	860W	33.1 J/TH	Budget entry, lowest power draw
S19j Pro Slim	30 TH/s	930W	31.0 J/TH	Solid mid-range, widely available hashboards
S19k Pro Slim	38 TH/s	930W	24.5 J/TH	Best efficiency in the 19-series lineup
S21 Slim	44 TH/s	920W	20.9 J/TH	Next-gen silicon, maximum hashrate and efficiency

These are the optimal settings found after extensive testing across different hashboards, conditions, and environments. You can fine-tune frequency and voltage through the VNish web interface, but never exceed 1,200W on any Antminer Slim configuration. The pre-set profiles include a safety buffer for varying ambient temperatures.

The Mining Hacker Approach to Form Factor

A stock Antminer S19 weighs 14.4 kg, measures 400 x 195 x 290 mm, produces 75+ dB, and requires a 240V circuit. It was designed for a rack in a data centre, not a shelf in your apartment. The Antminer Slim Edition is what happens when Bitcoin Mining Hackers get their hands on it: 1. Single-Hashboard Architecture
A standard S19 runs three hashboards. The Slim Edition runs one — carefully selected, tested, and tuned. This drops power consumption from 3,000W+ down to 860-930W, well within the capacity of a residential 120V / 15A circuit. The Loki control board by Pivotal Pleb makes this possible, replacing the stock controller with a purpose-built board designed for single-hashboard, single-PSU, residential operation. 2. Custom 3D-Printed Chassis
The enclosure is designed and 3D-printed by D-Central Technologies. It is not a modified Antminer case with the sides cut off — it is a ground-up design optimized for the slim single-hashboard form factor, with proper intake and exhaust channels, fan mounting, and cable routing. The chassis also serves as part of the cooling path, directing airflow exactly where the chips need it. 3. Your Choice of Premium Fans
Three cooling options let you dial in the noise-versus-performance balance for your specific environment:

Fan Option	Max RPM	Airflow	Static Pressure	Best For
Arctic P12 Max	3,300	137.7 m3/h	4.35 mm H2O	Cool rooms (<25 C), under 1,000W, quietest option
Noctua NF-F12 iPPC 3000	3,000	186.7 m3/h	7.63 mm H2O	Warmer rooms, up to 1,200W, quiet under load
Gelid Gale-01	3,500	~186 m3/h	12.0 mm H2O	Maximum cooling headroom, hot environments, the technician’s choice

The technician’s choice: Our own repair techs run Gelid Gale-01 fans on their personal rigs. The reason is static pressure — at 12 mm H2O, the Gelid pushes air through heatsinks more aggressively than either alternative, keeping chip temperatures lower under sustained load. The sound profile is a pleasant low pitch rather than a high-frequency whine. 4. VNish Firmware with Fixed Profiles
Each Slim Edition ships with VNish firmware tuned to fixed frequency profiles that we have validated across hundreds of test hours. Unlike BraiinsOS auto-tuning (which works best on multi-hashboard rigs with the stock controller), VNish gives us precise manual control over each chip’s frequency and voltage on the Loki board. The profiles are set with a performance buffer so the rig runs stable across a range of ambient temperatures.

Dual-Purpose: Mine Bitcoin, Heat Your Space

Every watt consumed by the Antminer Slim Edition converts to two things: SHA-256 hashes and thermal energy. At 100% electrical-to-thermal efficiency, here is what each variant outputs:

Variant	Power Draw	BTU/hr Output	Heats Approx.
S19 Slim	860W	~2,934 BTU/hr	150-200 sq ft
S19j Pro Slim	930W	~3,171 BTU/hr	175-225 sq ft
S19k Pro Slim	930W	~3,171 BTU/hr	175-225 sq ft
S21 Slim	920W	~3,137 BTU/hr	175-225 sq ft

Coverage depends on insulation, ceiling height, outside temperature, and airflow. Use our Space Heater BTU Calculator for a personalized estimate. During heating season, this is not “waste heat” — it is your heating system. You are paying for electricity to heat your home regardless. The Slim Edition just makes that electricity mine Bitcoin at the same time. Read the math: Bitcoin Space Heater vs. Electric Heater — The Complete 5-Year Cost Comparison. For more on which miners make the best heaters, see our guide: Best Miners for Space Heaters.

What Is in the Box

Item	Details
Antminer Slim Case (1x)	Custom 3D-printed chassis by D-Central Technologies
120mm Silent Fans (4x)	Arctic P12 Max or Gelid Gale-01 (technician’s choice, or request specific fan at checkout)
Antminer Hashboard (1x)	Recycled S19 / S19j Pro / S19k Pro / S21 (variant selected at purchase)
Loki Kit (1x)	Control board by Pivotal Pleb for 120V single-hashboard operation
Silent APW3++ PSU (1x)	Recycled, tested, fan-modded for quiet operation
Power Cord (1x)	North American standard
WiFi Adapter (1x)	Pixlink or Vonets (for wireless operation)

How the Slim Edition Compares

Feature	Slim Edition	StealthMiner	S19 Space Heater	Pivotal Edition
Priority	Compact size	Minimum noise	Maximum heat output	Multi-hashboard power
Hashrate	26-44 TH/s	26-38 TH/s	40-56 TH/s	60-100+ TH/s
Power	860-930W	860-930W	1,100-1,200W	1,200-3,200W
Noise	~55-60 dB	<60 dB	~50-55 dB	~55-65 dB
Voltage	120V / 240V	120V / 240V	120V / 240V	240V recommended
Form Factor	Slim profile	Compact cube (300mm)	Full-size heater	Full-size custom
S21 Option	Yes (44 TH/s)	No	No	Yes
Best Placement	Shelves, desks, closets	Bedrooms, offices	Living rooms, hallways	Dedicated rooms, basements

Choosing between Slim and StealthMiner: If physical space is the constraint (shelves, tight corners, desk setups), the Slim Edition’s profile wins. If noise is the primary concern (bedrooms, offices during calls), the StealthMiner’s Structur3.io enclosure with premium sound dampening has the edge. The Slim also offers the S21 variant at 44 TH/s — the most efficient option in any D-Central single-hashboard build. Want to build one yourself instead? Check out the Antminer Slim DIY Kit — same chassis and instructions, bring your own hashboard.

Frequently Asked Questions

Can I really run this on a standard 120V outlet?

Yes. The Loki control board and APW3++ PSU are designed for 110-240V input. On a North American 120V / 15A circuit, the Slim Edition draws 7-8A continuously, well within the circuit’s capacity. We recommend a dedicated circuit (nothing else on the same breaker) and a quality power strip with surge protection. No electrician visit required.

Which variant gives the best return?

The S21 Slim (44 TH/s at 20.9 J/TH) offers the highest hashrate and best efficiency — more sats per watt. The S19k Pro Slim (38 TH/s at 24.5 J/TH) is the sweet spot if the S21 is out of stock or above your budget. For pure heating value where mining revenue is secondary, any variant works since heat output is similar across all four. Use our Mining Profitability Calculator to model your electricity cost and expected returns.

How loud is it compared to a stock Antminer?

A stock Antminer S19 hits 75-80 dB — louder than a vacuum cleaner. The Slim Edition with Arctic P12 Max fans runs at roughly 55 dB; with Noctua or Gelid fans under moderate load, about the same. For comparison, 55-60 dB is the volume of a normal conversation or a running dishwasher. It is very livable in the same room, and essentially inaudible behind a closed door. For the absolute quietest option, see the StealthMiner. For more noise reduction strategies: ASIC Noise Reduction Guide.

What does “recycled hashboards” mean? Are they used?

Yes, the hashboards are recovered from decommissioned commercial mining operations. These are not defective parts — they are fully functional boards that large-scale miners replace when upgrading to the newest generation. Every hashboard in a Slim Edition is individually tested, cleaned, and tuned before assembly. This approach keeps the price accessible, reduces electronic waste, and is central to the Mining Hacker philosophy: giving perfectly good hardware a second life in someone’s home instead of a landfill.

Which fan should I choose?

Arctic P12 Max — best for cool environments (intake air below 25 C) and power settings under 1,000W. Quietest option. Noctua NF-F12 iPPC 3000 — best for warmer environments or loads up to 1,200W. Industry-standard reliability. Gelid Gale-01 — the technician’s choice. Highest static pressure (12 mm H2O) pushes air through heatsinks aggressively, best for sustained high loads or hot environments. Pleasant low-pitched sound. If unsure, the Gelid or Noctua will handle any scenario.

Why VNish instead of BraiinsOS?

The Loki board + single-hashboard architecture works best with fixed-frequency firmware rather than auto-tuning. VNish lets us set precise per-chip frequencies and voltages, which we optimize during our 24-hour test cycle. BraiinsOS auto-tuning is designed for stock multi-hashboard Antminers with the original controller — it can behave unpredictably on modified single-board setups. The Slim Edition ships with our validated VNish profiles. You can adjust them, but we strongly recommend not changing settings without understanding the implications.

Can I use this in an apartment without bothering neighbours?

That is exactly what it was designed for. At 55-60 dB, the Slim Edition produces about the same noise as a dishwasher. Your neighbours on the other side of a wall will not hear it. Standard 120V power means no electrical modifications or landlord approval for wiring changes. The heat output replaces a standard space heater, so your power bill stays comparable. For a deep dive on the topic: Bitcoin Mining in Apartments.

What happens if it breaks?

Every Antminer Slim Edition includes a 90-day warranty. If something goes wrong, D-Central offers prioritized repairs at our ASIC Repair facility in Laval, Quebec. We have been repairing ASIC miners since 2016 with technicians who specialize in Antminer hardware. Keep the security seals intact for warranty coverage. After the warranty period, we still offer repair services — we just built the machine, so we know exactly how to fix it.

What is the maximum wattage I should run?

Never exceed 1,200W. This is a hard limit for residential single-hashboard builds on the Loki platform. The pre-configured VNish profiles keep all variants well within this limit (860-930W). If you decide to tune the frequency yourself, monitor power consumption carefully and stay under 1,200W at all times. Running above this threshold risks overheating the PSU, tripping your circuit breaker, or damaging the hashboard. Use a kill-a-watt meter or smart plug with power monitoring to verify.

Is the Slim DIY Kit the same thing without assembly?

Almost. The Antminer Slim DIY Kit includes the 3D-printed chassis, fans, Loki board, and instructions — but no hashboard and no PSU. You source those yourself (from us or elsewhere), assemble the unit, and flash the firmware. The fully assembled Slim Edition includes everything ready to mine, with D-Central’s 24-hour testing and validated VNish profiles. The DIY Kit is for builders who enjoy the process and may already have spare hashboards. The Slim Edition is for miners who want it working on arrival.

Why D-Central

D-Central Technologies has been building, repairing, and hacking Bitcoin mining hardware since 2016. We are not a reseller. We do not dropship from Shenzhen. We are Bitcoin Mining Hackers operating out of Laval, Quebec — a team of technicians who take industrial-grade Antminer silicon and re-engineer it into machines that belong in your home. The Antminer Slim Edition is designed, 3D-printed, assembled, firmware-tuned, and tested under one roof. When you call support, you reach the people who built your machine. When you need a repair, your unit comes back to the same bench where it was born. This is what decentralization looks like at the individual level. Every Slim Edition that ships moves hashrate from a corporate data centre to someone’s apartment, someone’s shelf, someone’s desk. It heats their space. It stacks their sats. It makes the Bitcoin network stronger. Every hash counts.

Reconditioned Excellence — Our machines are not just refurbished; they are revitalized. Each unit passes a rigorous reconditioning process and a 24-hour stress test before shipping. When you buy from D-Central, you are securing top-quality equipment on a first-come-first-served basis.

90-Day Warranty — Should any issues arise, we offer prioritized repairs at our Laval repair facility. Keep the security seals intact to maintain coverage.

Setup Requirements — Use a dedicated AC 15A circuit. Keep humidity below 75%. Maintain intake air temperature between 0-40 C. Never connect more than one mining unit per circuit breaker. Never exceed 1,200W.

Shipping and Customs — Prices do not include shipping, customs fees, or taxes. International buyers should review local import regulations. Standard processing time is under 48 hours; allow up to 5 business days. Orders involving 3D printing or special sourcing may add 1-2 days.

Final Sale — Due to the dynamic nature of cryptocurrency markets, all sales are final. We cannot honour refund requests due to price adjustments. By purchasing, you agree to our return and refund policy.