{"product_id":"swit-ka-b21s-v-mount-to-b-mount-conversion-plate","title":"SWIT KA-B21S V-Mount to B-Mount Conversion Plate","description":"\u003ch2\u003eSWIT KA-B21S V-Mount to B-Mount Conversion Plate\u003c\/h2\u003e\n\n\u003cp\u003eThe SWIT KA-B21S V-mount to B-mount conversion plate enables compatible B-mount cinema cameras to operate from high-voltage V-mount batteries. The adapter passes the battery’s voltage directly to the camera without conversion, providing a streamlined power solution for professional crews working across mixed battery-mount systems.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for the ARRI ALEXA 35, ARRI ALEXA 265, Blackmagic Design URSA Cine, and other compatible B-mount cameras, the plate supports 26V and 28.8V V-mount batteries. It also activates the 28.8V output mode of the SWIT PB-H290S bi-voltage battery, delivering a 22–33.6V operating range to supported high-voltage equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe KA-B21S accepts SWIT and compatible third-party V-mount batteries, helping rental houses, camera departments, and production teams consolidate their available power inventory. Its CNC-machined aluminum unibody housing provides a durable interface for demanding production environments, while integrated circuit protections support reliable operation on professional camera rigs.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eV-Mount Battery Compatibility:\u003c\/strong\u003e Allows compatible V-mount batteries to power cameras equipped with a B-mount interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Voltage Pass-Through:\u003c\/strong\u003e Outputs the same voltage supplied by the attached V-mount battery without voltage conversion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Voltage Camera Support:\u003c\/strong\u003e Works with compatible cinema cameras requiring 26V or 28.8V battery power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBi-Voltage Battery Activation:\u003c\/strong\u003e Activates the 28.8V mode of the SWIT PB-H290S battery for supported B-mount cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThird-Party Battery Support:\u003c\/strong\u003e Accepts compatible 26V and 28.8V V-mount batteries from other manufacturers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Camera Compatibility:\u003c\/strong\u003e Supports select ARRI and Blackmagic Design high-voltage cinema cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum Unibody Housing:\u003c\/strong\u003e Uses CNC-machined construction for durability in professional production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Protection:\u003c\/strong\u003e Incorporates multiple circuit protections for safer and more reliable power delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KA-B21S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e V-mount battery to B-mount camera conversion plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery-Side Mount:\u003c\/strong\u003e V-mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera-Side Mount:\u003c\/strong\u003e B-mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Bays:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported V-Mount Battery Voltages:\u003c\/strong\u003e 14.4V, 26V, and 28.8V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e Same as the attached V-mount battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Voltage Operating Range:\u003c\/strong\u003e 22–33.6V with a compatible 28.8V battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible SWIT Bi-Voltage Battery:\u003c\/strong\u003e PB-H290S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible SWIT High-Voltage Battery:\u003c\/strong\u003e HB-C420S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThird-Party Battery Compatibility:\u003c\/strong\u003e Compatible 26V and 28.8V V-mount batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Cameras:\u003c\/strong\u003e ARRI ALEXA 35, ARRI ALEXA 265, Blackmagic Design URSA Cine, and compatible high-voltage B-mount cameras\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing:\u003c\/strong\u003e CNC-machined aluminum unibody\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Multiple circuit protections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's In the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSWIT KA-B21S V-Mount to B-Mount Conversion Plate\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SWIT","offers":[{"title":"Default Title","offer_id":46580847640773,"sku":"SWIT-KAB21S","price":219.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/product-image_7355cd24-ead5-4338-b588-30e5e35b81a5.jpg?v=1784758036","url":"https:\/\/avlgear.com\/products\/swit-ka-b21s-v-mount-to-b-mount-conversion-plate","provider":"AVLGEAR","version":"1.0","type":"link"}