Bitmain Antminer KS7 (40TH)

40 TH/s KHeavyHash at 3,080W and 77 J/TH for Kaspa (KAS) mining. ±3 percent hashrate and ±5 percent power tolerance. This is the 40 TH/s bin of the Bitmain Antminer KS7, which also ships in 45 TH/s and 36 TH/s variants from the same production line. All bins share the same chassis, power draw, and 77 J/TH efficiency. The difference is chip grade: higher quality bins achieve more hashrate at the same power.

Bitmain. MM's FAQ answer incorrectly says "The most powerful version of the IceRiver KS7." IceRiver manufactures a completely different product called "KS7" at 30 TH/s. The Bitmain Antminer KS7 at 40 TH/s is made by Bitmain, not IceRiver. Different company, different hardware, different specifications. The shared model name is a coincidence of two manufacturers naming their Kaspa ASIC "KS7."

KS7 45 TH at $2,123 ($47.18 per TH/s). KS7 40 TH at $1,877 ($46.93 per TH/s, this product). Same chassis, power, cooling, and efficiency. The 45 TH produces 12.5 percent more hashrate for $246 more. Per terahash acquisition cost is nearly identical. For single unit purchases, the 45 TH delivers more daily profit (+$3.09 versus +$2.08) at $246 higher CapEx. For fleet builds on a fixed budget, the 40 TH allows more units: $18,770 buys ten 40 TH units (400 TH/s total) versus nine 45 TH units (405 TH/s at $19,107). Fleet hashrate is comparable; the 40 TH just slices the budget differently.

Kaspa's development community has discussed transitioning from KHeavyHash to a different mining algorithm. If this occurs, all KHeavyHash ASICs (KS7, KS5, IceRiver KS series, Goldshell KA series) become incompatible with the Kaspa network. No firm timeline has been announced. The risk is real but the timing is uncertain. Monitor Kaspa Discord, GitHub, and community governance channels for updates. Buyers should model their CapEx recovery assuming a finite mining window rather than indefinite operation. At approximately 30 day payback, the KS7 40 TH recovers acquisition cost extremely quickly, providing a buffer against potential algorithm changes.

Yes, strongly. MillionMiner calculator at $0.08 per kWh: +$2.08 daily ($8.00 revenue minus $5.91 electricity). At $1,877 acquisition: payback approximately 30 days. ASIC Miner Value shows +$5.40 daily at $0.10 per kWh. Kaspa mining is among the most profitable ASIC operations at current conditions. The approximately 30 day payback is among the fastest of any miner in MillionMiner's inventory, providing rapid CapEx recovery before any potential algorithm change.

220 to 277V single phase AC. No 110V support. At 3,080W on 220V draws approximately 14 amps. Fits standard 20A commercial circuits. North American residential 240V on dedicated circuits is compatible. Standard for industrial ASIC deployments.

75 to 76 dB from four cooling fans. Standard industrial ASIC noise, identical to Bitmain's SHA-256 miners (S21 XP, S23). Requires dedicated mining space: warehouse, container, isolated room, or professional hosting. Not suitable for residential or office environments without sound isolation.

IceRiver KS5L at 12 TH/s, 3,400W, 283 J/TH (previous gen). Bitmain KS7 40 TH at 40 TH/s, 3,080W, 77 J/TH (this product). The KS7 delivers 3.3 times more hashrate at 9 percent less power with 3.7 times better efficiency. The generational gap is enormous. The KS5L is legacy hardware; the KS7 is the current standard for industrial Kaspa mining.

Goldshell KA Box at 1.18 TH/s, approximately 400W, desktop home form factor. KS7 40 TH at 40 TH/s, 3,080W, industrial. These are completely different product categories. The KA Box is a quiet desktop Kaspa accumulation device for home users. The KS7 is industrial Kaspa mining hardware for data centers and dedicated mining facilities. The KS7 produces approximately 34 times more hashrate. They do not compete; they serve different buyers.

Kaspa trades on Binance, KuCoin, MEXC, Gate.io, and numerous smaller exchanges. Trading volume is meaningful and growing. KAS has substantially better exchange liquidity than most niche mining coins (Radiant, Tari, Nervos, Alephium). Miners can sell KAS to BTC, USDT, or fiat with reasonable order book depth. This exchange presence is one of Kaspa's strongest fundamentals for mining economics.

KHeavyHash coins only. Kaspa (KAS) primary. SedraCoin (SDR) is an alternative KHeavyHash network. Other experimental KHeavyHash forks may exist. The KS7 cannot mine Bitcoin (SHA-256), Litecoin (Scrypt), Ethereum Classic (EtcHash), or any other algorithm. If Kaspa changes its algorithm, SedraCoin and minor KHeavyHash chains would be the only remaining networks.

Yes. Built in PSU accepting 220 to 277V single phase. No external PSU to source. Connect directly to an appropriate outlet. C19 power connector with 20A cable.

Connect power cable to 220V+ outlet. Connect Ethernet cable to router or switch. Find miner IP through Bitmain IP reporter, router DHCP, or network scanning. Open Antminer web interface, configure KHeavyHash pool URL and KAS wallet address. Kaspa pools include Herominers, K1Pool, 2Miners, WoolyPooly, and F2Pool. Verify hashrate stabilizes at approximately 40 TH/s.

Yes. MillionMiner hosting facilities accept KS7 hardware. At $0.07 per kWh hosted: electricity $5.17, profit +$2.83 daily. Hosting eliminates facility noise and 220V circuit requirements. At $0.05 per kWh (some facility rates): +$4.30 daily, payback approximately 15 days.

The KS7 runs Bitmain's standard Antminer firmware with pool management, hashrate monitoring, temperature alerting, and fan control. Third party firmware support (BraiinsOS+ or Vnish) for KHeavyHash ASICs may be limited compared to the mature SHA-256 ecosystem. Verify third party compatibility before purchasing if custom firmware is a requirement.

Standard air cooled Antminer maintenance. Quarterly dust cleaning of four fans. Monitor hashrate and temperature through the web interface. Released May 2025, the KS7 has approximately 11 months of field reliability data. Bitmain's Antminer platform is the most tested ASIC architecture in the industry across multiple algorithms.

MM's millionminer.com listing says "6 month manufacturer's guarantee." Happy Mining says 1 year. Bitmain typically offers 180 to 365 days depending on product and distribution channel. Verify the specific warranty duration through MillionMiner.

430 x 195.5 x 290 mm per ZC Miner and Happy Mining (MM lists 430 x 196 x 290 mm, negligible rounding). Weight varies: MM spec lists 16.4 kg, ZC Miner lists 15.8 kg, Happy Mining lists 16 kg, MM's millionminer.com page says 20 kg. Verify actual weight with MillionMiner. Standard industrial ASIC form factor.

The KS7 40 TH is one of the best risk adjusted mining purchases available. At $1,877 with approximately 30 day payback, you recover acquisition cost within one month. Even if Kaspa announces an algorithm change 6 months from now, you will have mined approximately $375 in profit by then (at $0.08 per kWh). Buy if: you want the fastest CapEx recovery, you accept the algorithm change risk and have modeled it, you have or can access 220V+ circuits. Consider the 45 TH bin ($2,123) for 12.5 percent more hashrate at marginally higher CapEx. Do not buy in large quantities if you are unwilling to lose the investment in a Kaspa algorithm change scenario.

Within Kaspa mining: KS7 45 TH ($2,123, higher bin), Goldshell KA Box (1.18 TH/s, desktop home KAS mining), IceRiver KS5L (12 TH/s, previous gen). For cross algorithm diversification: Bitmain S21 PRO (234 TH/s Bitcoin, $3,083), Bitdeer A3 Pro Air (290 TH/s Bitcoin, $4,490), Bitmain L9 (17 GH/s Scrypt for LTC/DOGE). Diversifying across algorithms reduces the single point risk of a Kaspa algorithm change.