I still have 3pcs now 2pcs -100USD Antminer S7 batch 15 coupons to give away for free.
I have +400 bitmain coupons 100$, i sell alls. My whatsapp id is +34 655940711.
Prices by quantities:
1 coupon: 0.01 btc
3 coupon: 0.025 btc
5 coupon: 0.04 btc
10 coupon: 0.08 btc
20 coupon: 0.15 btc
50 coupon: 0.25