whether it's time-limited or without any time limits on the duration of the card valid?
which currency will be accepted in this payment system? MNX, USD and I guess BTC?
rumor is, the card expires in 3 years but you shouldn't expect any special fee while renewing it. Card allows refilling with MNX, BTC and ETH which are automatically (by 3-rd party of ETF) converted to fiat at the time of ATM/POS transaction. The most favorable commission rates apply when you refill it with MNX.