SMT-R500-0.5-PW SMT-R500-1.0 SMT-R560-1.0 SMT-R560-1.0-PW SMT-R680-0.5-PW SMT-R680-1.0 SMT-R820-1.0 SMT-R820-1.0-PW SMTRA256-8-6ET SMTRA440-9-6ET