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3" USB to RS-232 (9-pin) (25-Pin) Serial Adapter with USB Extension Cable - Add a Serial Port to your DVR system
- Model #: BL-800A
- $25.00 –
- $5.49 Shipping
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1' USB to RS-232 (DB-9 Male) Cable - Add a Serial Port to your DVR System via USB! Support PTZ Control or Datas
- Model #: USB-RS232
- $20.00 –
- $5.49 Shipping
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Black Box DB9 Mini Converter (USB to Serial) USB/RS-485 (2-wire Terminal Block)
- Model #: IDXETS2889663
- $143.07 –
- More options from $119.22 - $148.61
- Free Shipping
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Door Release Button Push to Exit Resettable NO/COM Switch for Access Control Panel 86mmx50mm 36V 3A Stainless Steel
- Brand: Unique Bargains
- Type: Switches
- Model #: a19012400ux0267
