All Elektron presets:
Digitone - Ambient Tones (64 atmospheric presets)
Digitone - FM & VA Bass (64 bass presets)
Digitone - Melancholia (64 synth presets)
Digitone BUNDLE - Ambient Tones, FM & VA Bass, Melancholia (192 presets)
Syntakt - Synth Voices (64 Synth Presets)
Syntakt - Base of Bass (64 Bass Presets)
Syntakt BUNDLE - Synth Voices, Base of Bass (128 presets)

Analog Four - Vintage Pads (64 Presets)

Analog Four - Bass Machine (64 Presets)
Analog Four - Evolving Voice (64 Presets)
Analog Four BUNDLE - Vintage Pads, Bass Machine, Evolving Voice (192 Presets)

This bundle includes two Syntakt soundsets: Synth Voices and Base of Bass, 128 presets total. 

"Synth Voices" is a collection of 64 presets: 33 Leads, 24 Plucks, 7 Textures. 
35 presets for digital tracks/machines (1-8) and 29 presets for analog tracks/machines (9-11).

There are vintage/retro leads, rhythmic pads, punchy plucks, soft mallets, melodic percussion, massive synths, beautiful bells, dark soundscapes, metallic/noisy tones, and others...

The presets inside the bank are subdivided into 3 categories, presets titles include the category for better sorting: LD (Lead), PL (Pluck), TX (Texture). Also, the presets include tags. 

"Base of Bass" is a collection of 64 bass presets:
- 32 presets for digital tracks/machines (1-8)
- 32 presets for analog tracks/machines (9-11)
It features a variety of bass tones: soft, hard, metallic, vintage, modern, deep, bright, aggressive, epic, FM... 

All presets have ModWheel modulations.

The soundset is suitable for a wide range of genres: techno, house, deep, minimal, progressive, trance, ambient, electronica, IDM, trip-hop, lounge, downtempo, chill out, new age, cinematic, industrial, breakbeat, breaks, jungle, drum and bass, dub and many others.  

Make sure you are using the latest firmware version.
Drums are not included. 

Instructions:
Turn on Syntakt and connect it via USB to your computer.
Open Elektron Transfer the app.
Open Connection tab. 
For MIDI in and MIDI out choose Elektron Syntakt, and push Connect.
Open Explore tab.
On the left side choose Computer, and locate the folder with the presets.
On the right side choose Sounds, and select a Bank you are going to use for the new presets.
Drag and drop presets from the left side to the right side (to the free slots on the device).
Few seconds and the presets are on your Syntakt.
Have fun.