Bitmain Antminer Z15 Pro (840kh/s)

Was a bit nervous about ordering hardware this size online. At 65 dB it's tolerable in an outbuilding. Tracking updates came in on time, no dark days in transit. Zero drama, which in this space is high praise.

Been mining for years, this is a solid addition. Network stability has been perfect, zero disconnects logged. Bitmain's firmware isn't fancy, but it's reliable. ZEC payouts are landing without incident. Zero drama, which in this space is high praise.

Delivery to Germany took eight days door to door. The PSU handles surges without issue. The Zcash algo hasn't been touched in a while, so I feel OK about a multi-year hold. Payment via BTC went through in one confirmation. Docs on the manufacturer side are thin, expect to Google a few things. Solid buy at this price.

Looked at the same model on three other sites. Started producing shares within about 90 seconds of first boot. Reading 840kh/s steady on the pool. Equihash-only, and the Zcash side of things has been stable enough to justify it. Would recommend to anyone with cheap power to burn.

The listing was actually accurate for once. Haven't lost a single hashboard in the first month. Reading 840kh/s steady on the pool. Equihash-only, and the Zcash side of things has been stable enough to justify it. Return policy was refreshingly readable. Would have loved a spare fan bundled in — small nit. Genuinely one of the easier hardware purchases I've made.

My accountant will hate me but I'm glad I bought it. Was worth the extra for the newer generation efficiency. Bitmain's firmware isn't fancy, but it's reliable. ZEC payouts are landing without incident. Shipped from the EU warehouse so no import duty surprises. Five stars for what it is.

Was on the fence for a few weeks before pulling the trigger. Boots cleanly and joins the pool without any fiddling. Reading 840kh/s steady on the pool. ZEC payouts are landing without incident. Return policy was refreshingly readable.

My accountant will hate me but I'm glad I bought it. Efficiency is exactly where the spec sheet said it would be. Bitmain's firmware isn't fancy, but it's reliable. ZEC payouts are landing without incident. Hosted mine at their Bhutan site, uptime has been genuinely 99%+. Zero drama, which in this space is high praise.

Shipped to Portugal, arrived in six working days. The PSU handles surges without issue. Equihash-only, and the Zcash side of things has been stable enough to justify it. Tracking updates came in on time, no dark days in transit. Second time I've done business with Bull Miners, both smooth.

First unit I've bought from Bull Miners. Efficiency is exactly where the spec sheet said it would be. The Zcash algo hasn't been touched in a while, so I feel OK about a multi-year hold. Genuinely one of the easier hardware purchases I've made.

My accountant will hate me but I'm glad I bought it. The sound signature is more of a hum than a roar. Draws 2780 W at the wall, matches the plate. ZEC payouts are landing without incident. Would encourage a friend to buy from here.

Bought this after reading a couple of comparisons. Runs quieter than I feared, no worse than a small vacuum. Bitmain's firmware isn't fancy, but it's reliable. ZEC payouts are landing without incident. Dashboard for the hosted unit shows shares in near real-time, which was a nice surprise. Would have loved a spare fan bundled in — small nit. No complaints, would order again.