7.3 TH/s kHeavyHash at 3,188W. Bitmain Kaspa miner.

How does it compare to KS5?

KS5: 20 TH/s. KS3: 7.3 TH/s. The KS5 delivers nearly 3x more hashrate for similar power.

Bitmain Antminer KS3 7.3TH Kaspa Miner

Name: Bitmain Antminer KS3 (7.3Th)
Brand: Bitmain
SKU: MM2026BITMAINANTMINERKS373
Availability: OutOfStock

Mining Profitability Calculator

Hashrate

Power

Electricity Cost

Daily	Monthly	Yearly
$2.33	$69.90	$850.45
-$3.83	-$114.90	-$1,397.95
-$1.49	-$44.70	-$543.85

Using 0.050 $/kWh · Network difficulty as of today. Estimates only. Updated daily. Last refresh: Sep 10, 2026 Adjust rate in the bar above

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Get a Quote for the Bitmain Antminer KS3 (7.3Th)

Pricing, lead time, and hosting options. Personal advice from our sales team.

Get a Quote for the Bitmain Antminer KS3 (7.3Th)

Pricing, lead time, and hosting options. Personal advice from our sales team.

Bitmain Antminer KS3 7.3TH KHeavyHash ASIC Miner for Professional Kaspa Mining

Bitmain's first generation Kaspa ASIC. The KS3 at 7.3 TH/s and 3,188W launched Bitmain's presence in the KHeavyHash mining market before the KS5 (20 TH/s) and KS5 PRO (21 TH/s) pushed the boundaries further. Multiple KS3 variants exist at different hashrate bins (7.3, 8.3, and 9.4 TH/s), all sharing similar power consumption. This 7.3 TH/s model is the base bin. At 3,188W, efficiency sits at about 0.437 J/GH. The KS5 at 20 TH/s and 3,000W runs 0.150 J/GH, nearly three times more efficient. The KS3 is previous generation competing purely on discounted acquisition cost. Universal 100 to 240V. 75 dB industrial. Daily electricity at $0.07 per kWh: $5.36. Monthly: $161. Bitmain Antminer… firmware. Ethernet. Standard KHeavyHash Stratum for all Kaspa pools. For fleet operators already running Bitmain Kaspa hardware, the KS3 fills rack slots at lower capital. The KS5 is the clear upgrade on efficiency, but inventory constraints and pricing premiums sometimes make the KS3 the practical choice. Check current distributor pricing on both models before defaulting to the older generation. The Kaspa ASIC market includes IceRiver (KS0 through KS7), Bitmain (KS3 and KS5 series), Goldshell (KA Box through E-KA1M), DragonBall (KS6 Pro/Pro+), and iBeLink (BM-KS Max). Five manufacturers creating intense competition and rapid difficulty growth. The KS3 family (7.3, 8.3, 9.4 TH/s) represents Bitmain exploring a new algorithm market before committing full R&D resources. The KS5 series that followed shows what Bitmain delivers when they optimize. First gen products from any manufacturer are typically superseded quickly, and the KS3 to KS5 transition is a textbook example of that pattern.

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Antminer KS3 7.3TH Kaspa KHeavyHash Mining Machine

Bitmain's first generation Kaspa ASIC. 7.3 TH/s KHeavyHash at 3,188W. Now superseded by the KS5 (20 TH/s) and KS7 (40 TH/s). Available at steep previous gen discount. Universal 100 to 240V at 75 dB. Antminer firmware for Kaspa. Air cooled at 75 dB. Kaspa (KAS). Bitmain firmware. 370 x 195 x 290mm at 14.7 kg. Ethernet. 5 - 35 °C. Industrial 75 dB requires dedicated mining space. Warehouses, containers, or isolated rooms. Bitmain firmware for pool configuration and monitoring. Evaluate pricing against competing models. Total deployed hashrate… determines total coins mined. Industrial 75 dB demands dedicated mining space. Warehouses, containers, isolated rooms. 3188W of heat requires ventilation. Bitmain firmware for pool configuration. Evaluate pricing against competitors. Total deployed hashrate determines production. Model conservatively.