Editing Acorn Electron (section)

====Solidisk EFS====
In mid-1985, Solidisk released a cartridge-based interface with support for single and double density storage and providing Acorn DFS and ADFS compatibility, 16&nbsp;KB of on-board sideways RAM, and a connector for a Winchester hard drive. The cartridge itself cost £59, with a bundle including a double-sided, double-density, 3½-inch drive costing £200.<ref name="electronuser198508">{{ cite magazine | url=https://archive.org/details/ElectronUserVolume2/Electron-User-02-11/page/n5/mode/1up | title=Add-on for the Plus 1 | magazine=Electron User | date=August 1985 | access-date=13 January 2021 | page=6 }}</ref> A 20&nbsp;MB hard drive was offered at a price of £805. PAGE was set to &1900 when using the Solidisk system.<ref name="electronuser198508a">{{ cite magazine | url=https://archive.org/details/ElectronUserVolume2/Electron-User-02-11/page/n8/mode/2up | title=Solidisk EFS combines disc upgrade, 16K sideways RAM and a socket for the Winchester for only £59.00 | magazine=Electron User | date=August 1985 | access-date=13 January 2021 | pages=8–9 }}</ref>