Below are a variety of systems which will enable you to download analogue charts, drivers cards and vehicle units.  

With digital downloading your choice should be based on whether or not you see your drivers and vehicles on a regular basis to download their cards.  

Source

Reader Type

Analysis

Analogue chart analysis

You can use a compact chart reader or scanner to transfer data from analogue charts into the computer for analysis.

Download directly into a computer for analysis using the analysis program.

Driver card reader/download key package

Driver Card

Digital tachograph

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From drivers card into card reader and from digital tachograph into download key and from both into the computer.

Needs to be connected to a computer with a the analysis program to download the card.

Download directly into a computer for analysis using the analysis program.

Driver Card

Digital tachograph

Both drivers cards and the digital tachograph can be downloaded into the download tool.  Can be stored for later downloading into a computer. Does not need to be connected to a computer to download data.

To the computer for analysis using the  analysis program.