I do not know what the difference between these two drives are but i want to know which is better, my motherboard is
https://www.amazon.com/dp/B013WPZG6C/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=5N15ZCMQP1TV&coliid=I3S51PYH1PIPN8
i think the motherboard matters for the M.2 drive so that is why i am telling you and here are the links to the two drives
https://www.amazon.com/ADATA-Premier-SP550-120GB-ASP550SS3-120GM-C/dp/B013J7PP96/ref=sr_1_2?ie=UTF8&qid=1479602698&sr=8-2&keywords=adata+ssd
and
https://www.amazon.com/ADATA-Premier-SP550-120GB-ASP550NS38-120GM-C/dp/B01HHFKZ5K/ref=pd_rhf_gw_p_img_6?ie=UTF8&psc=1&refRID=A1A5Q5TQPW6D4ZV62TGR
https://www.amazon.com/dp/B013WPZG6C/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=5N15ZCMQP1TV&coliid=I3S51PYH1PIPN8
i think the motherboard matters for the M.2 drive so that is why i am telling you and here are the links to the two drives
https://www.amazon.com/ADATA-Premier-SP550-120GB-ASP550SS3-120GM-C/dp/B013J7PP96/ref=sr_1_2?ie=UTF8&qid=1479602698&sr=8-2&keywords=adata+ssd
and
https://www.amazon.com/ADATA-Premier-SP550-120GB-ASP550NS38-120GM-C/dp/B01HHFKZ5K/ref=pd_rhf_gw_p_img_6?ie=UTF8&psc=1&refRID=A1A5Q5TQPW6D4ZV62TGR