== Manual ==
* [[Media:Vortex SP 512 Kb (BOS 1.0) Manual.pdf|Vortex SP 512 Kb RAM Expansions for CPC 464 (BOS 1.0Vortex) Manual]] {{DE}} {{PDF}}
* [[Media:Vortex BOS 2.0 Manual.pdf|Vortex BOS 2.0 Manual]] {{DE}} {{PDF}}
* [[Media:Vortex RAM Expansions SP64-SP512 User Handbook (English) (Screens Microcomputer Distribution Ltd).pdf]] {{EN}} {{PDF}}