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Black Box Corporation
Black Box Async RS232 to RS422/485 Interface Converter - DB9 to Terminal Block
Black Box Async RS232 to RS422/485 Interface Converter - DB9 to Terminal Block - 1 x DB-9 RS-232 , 1 x Terminal Block - External Mfr # IC821A *Terms & Conditions = Pricing and availability are subject to change. No returns or refunds...$142.18$189.99