Polish developer Zaxon, who has produced a range of SD card interfaces and sound interfaces for the Spectrum and other computers, has released his first QL interface.
This is a version of the Qubide card, based on the original design from Jan Polenicek – see http://hardware.speccy.org/temp/qubide-i.html
Polish Qubide clone (picture from SellMyRetro.com)
The interface includes an IDE hard disk connector and 512K of RAM expansion. There is no through connector for other interfaces.
This Qubide costs £60 plus shipping costs and may be ordered online through SellMyRetro.com