si.zeRO SolidRun CuBox si.zeRO MAX si.fi
CPU Clock 1GHz 1.008GHz 1.4GHz 1.4GHz
CPU Compatibility* ARMv5 ARMv7 ARMv8 ARMv8
Cores used by RISC OS 1 1 1 1
USB Ports 2 2 2 4
Ethernet Yes Yes Yes WiFi Only
Speed 100mbps up to 470mbps 320mbps 100mbps
HDMI Ports 1 - mini 1 - full 1 - full 1 - full
HDMI Audio Yes Yes Yes Yes
Max Resolution 3840x2160 - 24Hz 3840x2160 - 60Hz 3840x2160 - 24Hz 3840x2160 - 24Hz
Internal Storage up to 200GB up to 200GB 32GB SSD up to 200GB
External Storage† Yes, SSD via USB Yes, SSD via eSATA Yes, SSD via USB Yes, SSD via USB
Size L65mm W30mm H35mm L55mm W55mm H55mm L110mm W30mm H60mm L80mm W70mm H35mm
Volume 0.07 litres 0.16 litres 0.19 litres 0.19 litres
External Case Yes Yes Yes Yes
Price from £49.99 from £299.99 £149 £115
* ARMv5 is compatible with more older software than ARMv7 or ARMv8
† Available but at extra cost
si.zero - smallest RISC OS computer ever
Acorn and RISC OS Spares and Extras
Acorn and RISC OS Spares and Extras
Acorn and RISC OS Spares and Extras
Because size does matter! si.zeRO is a Raspberry Pi Zero, with full sized USB and Ethernet ports added. All nicely sandwiched in a top and bottom case! This is the ultimate micro RISC OS computer- probably the smallest fully functional net-capable RISC OS computer in the world… EVER. Measuring only 65mm x 35mm x 30mm, it has a volume of less than 0.07 litres! Due to the nature of RISC OS on all Raspberry Pi models, it’s probably faster than the Raspberry Pi 2 and more compatible than the Raspberry Pi 3 - straight out of the box. And definitely much smaller, and just a little bit more fun! Specification CPU: Broadcom BCM2835, set to run at 1GHz. This offers ARMv5 mode for maximum 32bit software compatibility. RAM: 512MB Power: 5V, supplied via micro USB connector. I/O: 2x full USB Ethernet: 1x 10/100 RJ45 Dimensions: 65mm x 35mm x 30mm Video & Audio: 1080P HD video output. Audio output via mini-HDMI connector Storage: MicroSD card running an enhanced RISC OS image and software si.zeRO MAX si.zeRO MAX follows on from the si.zeRO in that it offers a very small form factor RISC OS machine, but improves upon the si.zeRO with: faster ethernet improved storage faster CPU more RAM si.zeRO MAX uses a custom carrier board for the Raspberry Pi 3B+ Compute Module to create a ridiculously small RISC OS desktop machine with built in 32GB eMMC SSD for RISC OS use. No requirement for a micro SD card at all! The improved ethernet speeds of around 320mbps and 40% faster CPU at 1.4GHz means the si.zeRO MAX will fly in comparison to it’s slightly smaller sibling.
Probably the smallest net-capable RISC OS computer in the world!
si.zeRO
16GB si.zeRO
A miniature si.zeRO computer, complete with 16GB RISC OS 5.28 card and HDMI adaptor
64GB si.zeRO
A miniature si.zeRO computer, complete with 64GB RISC OS 5.28 card and HDMI adaptor
A miniature si.zeRO computer, complete with 128GB RISC OS 5.28 card and HDMI adaptor
128GB si.zeRO £15 £15 £15 £49 £69 £89
We only use genuine brand-named SD cards, including Samsung, SanDisk, Toshiba and Kingston. Cards up to 200GB can be supplied. Contact us for details.
si.zeRO - adaptor HAT
If you’ve already got a spare Pi Zero and don’t need the SD card or the case, this kit provides the ethernet and USB HAT, and the bolts to hold it altogether
si.zeRO- adaptor HAT and case kit
If you’ve already got a Pi Zero and don’t need a RISC OS SD card, this kit provides the ethernet and USB HAT, plus all the case compoonents to make your own si-zeRO
This kit gives you everyhting you need to turn your existing Pi Zero into a si.zeRO 16GB mini computer!
si.zero - “supply your own Pi” Kit £15 £15 £15 £27 £32 £44
Availability Due to restrictions on the number available at any given time, the si.zeRO is strictly limited in its availability. si.zeRO MAX is built to order, and is subject to availability of component parts. Please contact us for details. si.fi si.fi is the latest addition to the si.zeRO family, offering a low-footprint wifi only option for RISC OS. Utilising Elesar’s WIFI HAT, the si.fi marries several layers into an ultra small but powerful desktop machine, that again improves on the si.zeRO with: wireless ethernet faster CPU additional USB ports si.fi incorporates a Raspberry Pi 3A+ within a clear, well ventilated 3mm acrylic case The freedom of the wireless internet plus the 40% faster CPU at 1.4GHz means the si.fi performs it’s task in a uniquely RISC OS way Comparison
£119 £149 RETIRED contact us for clearance stock