KnCMiner is offering a bonus speed increase to customers awaiting delivery of its Jupiter bitcoin mining rig.

The company said the Jupiter bitcoin mining rig will mine at a significantly higher rate than the 400 GH/s its customers are expecting.

"We will not down clock our chips to 400[GH/s], we will release all our machines with the greatest hashing power we can. So yes, the rumors are true – Jupiter will be greater than 400[GH/s] by a significant margin as a free gift from us to all our loyal customers," the KnCMiner team's statement reads.

Sam Cole, co-founder of KnCMiner, said the fabrication process of the chips has been completed and they are now on their way to an assembly house in Asia, before being shipped to KnCMiner's offices in Sweden in around six days' time.

Cole said the deliveries will go out on a "first-pay-first-serve" basis. "The guys who are at the front of the queue are the ones who paid the earliest."

The mining hardware producer revealed it has "broken a few speed records" in terms of the time it has taken to bring its products to market.

"I don't think you'll find any other 28nm product that's gone from conception to production in this timeframe. Normally they're measured in years, and we started in April," Cole said.

He explained that most companies spend two or three years researching and then spend one year producing.

The company is doing everything it possibly can to ensure this month's deadline is met, with a number of safety measures being put in place to try and avoid any hold-ups.

KnCMiner customers can expect to see images and footage of the Jupiter and Saturn mining rigs in action over the next week.