Clockwork Technology

'Clockwork technology' as it's been appropriately termed is a type of rare and ancient type of tech that uses the principles of analogue signals and mechanical components only.

Discovery
During her tenure as Grand Archivist, Karin Horke discovered several artifacts that used this type of technology, the original creators of the tech were largely unknown however thanks to a device dubbed 'the clockwork hyperdrive' a squad of the imperium managed to use an alternate method long range space flight to jump to a point outside the galaxy in dark space where a remnant space station from the civilisation that originally built the tech was positioned. It was there that almost all technological remnants within the galaxy were destroyed by a mysterious and unknown entity.