Min pledge is 0.1 ETH (+/- 70 USD)
Set GAS 300 000 - 4 Gwei (+/- 0.264 USD - unused gas will be returned to you)
Since reaching the goal, this preICO may be ended at any moment
As an example, if you invest 10 ETH, which is around $7 000 (at the current rate - 18/10/2017), you would receive 30 000 DNX, with a transaction cost of 300 000 GAS (+/- $0.264)
If you wish to invest using Bitcoin (BTC), convert your ETH amount to BTC.
If Coinbase is not available in your area or is unavailable to you, you may want to try some of the following exchanges:
https://wallofcoins.com/en/ is another option.
Finally, you may want to check if there is a Bitcoin ATM in your area: https://coinatmradar.com/