18 Star Micronics SP 300, SP300, SP311, SP312, SP316, SP317, SP320, SP321, SP322, SP323, SP341, SP342, SP347, SP348, SP349, MP300, MP312, MP312F, MP321, MP321 S-24, MP322, MP322 S-24, MP323, MP323 S-24, MP342, MP347, MP352, MP352S, MP382, SCD 400, Compatible POS Ribbons. Also fits Samsung cash registers ER350, ER550, ERP200, SMP200, SRP100, SRP200, SRP250 and more. NOTE: This ribbon will NOT fit the SAMSUNG ER350 ll