To run as SafeCoin validator you need a CPU with 2 Core with AVX support, a minimum 8GB memorycard, 20GB (for pruned) or 2TB (for full-history) and bandwidth of minimum 5 Mbps. For further information see also what we propose on staking SafeCoin.
Besides, we strongly recommend you to take a look at our validator set up instructions to get more information on how to set up your validator.