The CKB Miner K7 offers 63.5T at 48.5J/T efficiency with air cooling, SPOT shipping in 7 days, and an 180‑day warranty.

CKB Miner K7 Overview

The Bitmain Antminer K7 is an air‑cooled Eaglesong miner designed for Nervos CKB. With a hashrate of 63.5 TH/s and energy efficiency of 48.5 J/TH, it provides reliable mining performance with optimized cooling.

Key Specifications

• Hashrate: 63.5 TH/s (±3%)
• Power Consumption: 3080W (±5%)
• Efficiency: 48.5 J/TH
• Algorithm: Eaglesong (CKB)
• Cooling: Air‑cooled
• Noise Level: 70 dB
• Dimensions (unit): 430 × 195.5 × 290 mm
• Dimensions (packaged): 570 × 316 × 430 mm
• Weight: 16.1 kg net / 17.7 kg gross
• Voltage: 200–240V AC
• Interface: RJ45 Ethernet
• Hash Boards: 3
• Hash Chips: 276
• Environment Requirements: Operating temp 0–40 °C; humidity 10–90% RH; altitude ≤2000m

🛒 Purchasing Guidelines

• Price: $3,856 per unit (~$60.7 per T)
• After Coupon: $2,699 per unit (~$42.5 per T)
• Payment Methods: USD, BTC, ETC, USDT (ERC20/TRC20)
• Availability: SPOT shipping within 7 working days after full payment (currently sold out)
• Customs: Buyers must prepare proper documentation; cancellations or refunds are not accepted after order submission
• Images: Product photos are for reference only; final shipment version may differ

🚚 Shipping Details

• Origin: Made in China; U.S. buyers pay additional 25% tariff
• Dispatch: First‑paid, first‑shipped basis
• Responsibility: Buyer must handle customs clearance and documentation
• Certificates: Certificates of Conformity available for download

🛡 Warranty

• Coverage: 180 days from shipping date
• Includes: Replacement shipping costs covered by Bitmain within warranty period
• Exclusions: Resold units, improper installation, unauthorized modifications

⚠️ Buyer Considerations

• Requires 200–240V AC input
• Air‑cooled design means moderate noise levels (70 dB)
• Profitability depends on CKB difficulty and electricity rates
• Ensure proper ventilation to maintain efficiency