SmallyMouse2 Cased USB to Quadrature mouse interface for Acorn/RISC OS


SmallyMouse2 is a universal USB to quadrature mouse adapter for many 8-bit and 16-bit retro computers and allows the use of most USB mice on machines such as the Acorn BBC Micro, Acorn Master, Acorn Archimedes, Acorn RiscPC, Commodore Amiga, Atari ST and many more. Unlike most existing mouse adapters, SmallyMouse2 implements a fully USB compatible interface (most other adaptors are PS/2 based) this allows the use of any modern mice including those that use wireless communications.

Not suitable for the A3000, it has a slightly different socket which the Smallymouse's plug will not fit into reliably. Please contact us for alternative solutions for an A3000.

Copies of the source code and designs are available from ourselves on request.

International orders

International orders (including to the European Union) may also be subject to import duties, and other local taxes and charges, which the buyer will be responsible for. We will always ensure items have a correctly filled Customs document.


We follow eBay guidelines and only send to a verified PayPal address unless by prior arrangement.
UK delivery: Light Items are normal sent by Royal Mail untracked post, heavier items are sent by 3-5day courier.
Non UK delivery is normally sent by untracked Airmail (2-3 weeks Europe, 3-6 weeks for most of the rest of the world).
Next day delivery in the UK and express delivery to the rest of the world can be arranged. Please contact if you want express shipping.


We are able to accept payment by cleared cheque and Postal Order (£3 handling fee). Cheques payable to "CJE Micro's" please.
Bank transfers to Sort Code: 20-20-62 Account no.: 30352535 Acc. Name: CJE Micro's
International bank account no.: IBAN GB17 BARC 2020 6230 3525 35
SWIFT BIC: BARCGB22 n.b. If your Bank requires an 11 character SWIFT BIC, use BARCGB22XXX instead.
For bank transfers from outside the UK, please add £6 to cover bank fees on orders of less than £200.

About Us

CJE Micro‘s have the world's widest range of Raspberry Pi/RISC OS & Acorn accessories including many from third parties, most of which are famously normally 'In Stock'. Established in 1981, we have always specialised in hobby computing and have gained a reputation for a broad knowledge with high quality pre- and post-sales service.
CJE have, over the years, developed many of our own products for Acorn/RISC OS & Raspberry Pi computers. From the first ever 3rd party accessory for BBC Micro Model B (cassette leads) to the first ever 3rd party hardware for the Raspberry Pi Model B (Real Time Clock Module).

Contact Us

The Shop

Our showroom and sales area is normally open from: Monday to Friday 9am - 5.30pm
To find our shop you can view our address in the "Business Seller Information" below.