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More Power: 5.5 TH/s Shipping within 2 Business Days!

The SP31 included an improvement to the ASICs that delivered more hashing for the same power consumption. With the SP35 we replaced the PSUs to squeeze out even more out of the RockerBox ASICs. This new design will deliver 5.5TH/s while maintaining a slim 2 U case suitable for both home and data center hosting. Note: With the current power draw the SP35 is only suited for 208V and above power outlets.

Technical Specifications


SP35 - Yukon Power

Effective Hash Rate

5.5 TH/s ± 10%

Nominal Power Consumption

3650 W

Power Efficiency



Total 30 Spondoolies-Tech RockerBox ASICs


TI Sitara 1GHz (based on Beagle Bone Black)

Controller Board OS

Linux (embedded)

Mining Software

cgminer with custom plugin

Form Factor

2 U rack mountable (mounting ears provided)


Single 10/100 Ethernet port


4 X 80 mm

Power Supply

2 x 1600 W - Drawing 2 x 1750 W "at the wall" (approved by the manufacturer)  

Input Rating

200 - 240 VAC

Ambient Operating Temperature

0 °C to 35 °C

Emissions Compliance


Safety Certification


CFM 310

RockerBox ASIC Specifications

Process Node 28 nm
Package Type 19mm X 19mm FCBGA

Serial protocol with clk, datain and dataout

Rated Hash Rate

Rated hash rate: 200 GH/s per chip, with a wide range of overclock/downclock options

Rated Voltage 0.7 V, recommended voltage range is 0.63 V - 0.8 V
Power Consumption 0.34 W/GHs in typical corner

Supporting Software

Spondoolies-Tech endorses and believes in open-source. Our goal is to help advance the mining industry by contributing to open-source mining projects. Here is the list of projects that Spondoolies-Tech products use including the relevant code patches done by our R&D team:


Units are shipped according to the order in which orders are received. Orders are only considered complete once full payment has been accepted and acknowledged. All orders are insured and delivered by DHL.


Note that local fees such as customs may apply and are not covered by Spondoolies-Tech.


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