Antminer S19 XP — Warehouse Row Review
Bitmain’s S19 XP clears our 0.05 TH/s threshold comfortably at 140 TH/s nominal. We ran two units in a standard 42U open-frame rack inside a 1,400 m² warehouse near Daegu with 28°C ambient intake.
Rack Fit
At 195 mm depth, the S19 XP leaves 85 mm clearance to the rear door on a 800 mm deep rack — enough for a 60 mm hot-aisle gap when rows face each other across a 1.2 m aisle. Rear exhaust velocity was measured at 4.2 m/s, which pushed hot air into the containment channel without recirculating into the cold aisle when baffle panels were sealed at floor level.
Power per Bay
Six units per 42U bay drew 18.4 kW at the wall on a 32 A three-phase PDU. Harmonic distortion stayed below 8% THD on our Fluke capture. Breaker headroom of 22% remained on a 40 A feed, which meets the margin our electricians recommend for 24/7 load.
Cooling Observations
Chip junction temps averaged 68°C after 72 hours continuous hashing. When we removed one containment panel to simulate a partial install, intake rose 4°C on the bottom two units — worth noting for operators who stage containment after the first row goes live.
Aisle Verdict
Suitable for standard cold-aisle/hot-aisle rows in warehouses with ceiling heights above 3.5 m. Not ideal for back-to-back rack configs without inline ducting due to rear exhaust concentration.