{"product_id":"adapter-usb-to-ttl-b-21550","title":"USB TO TTL Adapter (B) (21550)","description":"\u003cstyle\u003e\n.ws-desc { max-width: 100%; color: #1f2937; line-height: 1.65; font-family: Arial, sans-serif; font-size: 16px; }\n.ws-desc * { box-sizing: border-box; }\n.ws-desc img { max-width: 100%; height: auto; display: block; margin: 16px auto; border-radius: 6px; }\n.ws-desc table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; margin: 14px 0; }\n.ws-desc td, .ws-desc th { padding: 9px 11px; border: 1px solid #d1d5db; vertical-align: top; font-size: 0.97em; }\n.ws-desc th { background: #f0fdf4; color: #065f46; font-weight: 700; white-space: nowrap; }\n.ws-desc tr:nth-child(even) td { background: #f9fafb; }\n.ws-desc h2 { font-size: 28px; letter-spacing: 0.01em; line-height: 1.3; margin: 22px 0 10px; color: #0f766e; font-weight: 700; }\n.ws-desc h3 { font-size: 21px; line-height: 1.3; margin: 20px 0 8px; color: #0f766e; font-weight: 700; }\n.ws-desc p { margin: 10px 0; font-size: 1.05em; }\n.ws-desc a { color: #0f4ca8; text-decoration: underline; word-break: break-word; }\n.ws-desc ul { margin: 12px 0 16px 0; padding-left: 26px; list-style-type: disc; list-style-position: outside; }\n.ws-desc li { margin: 8px 0; padding-left: 2px; line-height: 1.55; font-size: 1.05em; font-weight: 500; color: #1f2937; }\n.ws-desc li::marker { color: #0f766e; }\n.ws-hero { background: #f3f4f6; border-radius: 10px; padding: 22px 20px 10px; margin-bottom: 24px; text-align: center; }\n.ws-hero .ws-hero-title { font-size: 1.5em; font-weight: 800; color: #0f766e; letter-spacing: 0.04em; margin-bottom: 6px; }\n.ws-hero .ws-hero-sub { font-size: 1.05em; color: #374151; margin: 4px 0; }\n.ws-hero .ws-hero-badge { display: inline-block; background: #0f766e; color: #fff; border-radius: 20px; padding: 4px 16px; font-size: 0.92em; font-weight: 700; margin-top: 8px; letter-spacing: 0.03em; }\n.ws-features { background: #ecfdf5; border-left: 4px solid #0f766e; border-radius: 8px; padding: 16px 20px; margin: 18px 0; }\n.ws-features h3 { margin-top: 0; }\n.ws-resources { background: #f0f9ff; border-radius: 8px; padding: 16px 20px; margin: 18px 0; }\n.ws-resources h3 { margin-top: 0; color: #0369a1; }\n.ws-resources a { color: #0369a1; }\n.ws-divider { border: none; border-top: 2px solid #e5e7eb; margin: 28px 0; }\n@media (max-width: 768px) {\n  .ws-desc { font-size: 15px; }\n  .ws-desc h2 { font-size: 22px; }\n  .ws-desc h3 { font-size: 18px; }\n  .ws-hero .ws-hero-title { font-size: 1.2em; }\n}\n\u003c\/style\u003e\n\n\u003csection class=\"ws-desc\"\u003e\n\n  \u003cdiv class=\"ws-hero\"\u003e\n\n    \u003cdiv class=\"ws-hero-title\"\u003eUSB TO TTL CONVERTER\u003c\/div\u003e\n\n    \u003cp class=\"ws-hero-sub\"\u003eOriginal CH343G  |  Stable Data Transmission  |  Supports Multiple Devices \u0026amp; OS\u003c\/p\u003e\n\n    \u003cspan class=\"ws-hero-badge\"\u003eIndustrial Grade\u003c\/span\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-B-details-1.jpg?v=1780209548\" alt=\"USB TO TTL (B) converter\"\u003e\n  \u003c\/div\u003e\n\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003cdiv class=\"ws-features\"\u003e\n\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n\n    \u003cul\u003e\n\n      \u003cli\u003eOnboard self-recovering fuse and TVS diode — provides overcurrent, overvoltage, reverse connection, and ESD protection; improves anti-interference ability, ensuring safe and stable operation\u003c\/li\u003e\n\n      \u003cli\u003eOnboard IO protection circuit to suppress impulse interference\u003c\/li\u003e\n\n      \u003cli\u003eTTL level switch between 3.3V and 5V — easily select the required signal level\u003c\/li\u003e\n\n      \u003cli\u003e3 LED indicators for convenient monitoring of power and TX\/RX signal status\u003c\/li\u003e\n\n      \u003cli\u003eHigh-quality plastic casing with matte finish, meticulous craftsmanship\u003c\/li\u003e\n\n      \u003cli\u003eIDC connector with fool-proof protection\u003c\/li\u003e\n\n    \u003c\/ul\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n  \u003ctable\u003e\n\n    \u003ctbody\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eProduct Category\u003c\/th\u003e\n\n        \u003ctd\u003eIndustrial USB TO TTL Converter\u003c\/td\u003e\n\n        \u003cth\u003eHost Port\u003c\/th\u003e\n\n        \u003ctd\u003eUSB\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eBaud Rate\u003c\/th\u003e\n\n        \u003ctd\u003e50bps — 6Mbps\u003c\/td\u003e\n\n        \u003cth\u003eDevice Port\u003c\/th\u003e\n\n        \u003ctd\u003eUART\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eUSB Port\u003c\/th\u003e\n\n        \u003ctd colspan=\"3\"\u003eConnector: USB-A\u003cbr\u003eProtection: self-recovering fuse, ESD protection\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eUART Port\u003c\/th\u003e\n\n        \u003ctd colspan=\"3\"\u003eConnector: 8-pin fool-proof connector\u003cbr\u003eProtection: IO protection diode\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eIndicators\u003c\/th\u003e\n\n        \u003ctd colspan=\"3\"\u003e\n\n          \u003cstrong\u003ePWR\u003c\/strong\u003e — power indicator, lights red when USB voltage is detected\u003cbr\u003e\n          \u003cstrong\u003eTXD\u003c\/strong\u003e — TX indicator, lights red when data is sent from the USB port\u003cbr\u003e\n          \u003cstrong\u003eRXD\u003c\/strong\u003e — RX indicator, lights red when data is received by the device port\n        \u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n    \u003c\/tbody\u003e\n\n  \u003c\/table\u003e\n\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003ch2\u003eMulti-Level Protection — Safe And Stable Operation\u003c\/h2\u003e\n\n  \u003cp\u003eOnboard self-recovering fuse and TVS diode provide overcurrent, overvoltage, reverse connection, and ESD protection, improving anti-interference ability and ensuring safe and stable data transmission.\u003c\/p\u003e\n\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-B-details-3.jpg?v=1780209551\" alt=\"Converter protection circuit\"\u003e\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003ch2\u003eSupports Popular Operating Systems\u003c\/h2\u003e\n\n  \u003cp\u003eCompatible with popular OS: Windows 7\/8\/8.1\/10\/11, Mac, Linux, Android, and others.\u003c\/p\u003e\n\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-B-details-5.jpg?v=1780209553\" alt=\"Supported operating systems\"\u003e\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003ch2\u003eThree LED Indicators\u003c\/h2\u003e\n\n  \u003cp\u003eConvenient monitoring of device operating status — ideal for programming and debugging.\u003c\/p\u003e\n\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-B-details-7.jpg?v=1780209556\" alt=\"Three LED indicators\"\u003e\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003ch2\u003eUSB Signal and Pinout\u003c\/h2\u003e\n\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-B-details-9.jpg?v=1780209559\" alt=\"USB TO TTL (B) pinout\"\u003e\n  \u003ctable\u003e\n\n    \u003ctbody\u003e\n\n      \u003ctr\u003e\n\n        \u003cth style=\"width:25%\"\u003e5V\u003c\/th\u003e\n\n        \u003ctd\u003e5V output\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eVCC\u003c\/th\u003e\n\n        \u003ctd\u003e3.3V or 5V output — selected by switch\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eGND\u003c\/th\u003e\n\n        \u003ctd\u003eGround\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eTXD\u003c\/th\u003e\n\n        \u003ctd\u003eConnects to MCU.RX\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eRXD\u003c\/th\u003e\n\n        \u003ctd\u003eConnects to MCU.TX\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eRTS\u003c\/th\u003e\n\n        \u003ctd\u003eConnects to MCU.CTS\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eCTS\u003c\/th\u003e\n\n        \u003ctd\u003eConnects to MCU.RTS\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n    \u003c\/tbody\u003e\n\n  \u003c\/table\u003e\n\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003ch2\u003eDimensions\u003c\/h2\u003e\n\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-B-details-size.jpg?v=1780209562\" alt=\"USB TO TTL (B) dimensions\"\u003e\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003cdiv class=\"ws-resources\"\u003e\n\n    \u003ch3\u003eResources \u0026amp; Support\u003c\/h3\u003e\n\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/res_banner_61db9303-76c8-4a79-b522-8046338da613.png?v=1780209564\" alt=\"Resources and Service\"\u003e\n    \u003cp\u003e\u003cstrong\u003eWiki:\u003c\/strong\u003e \u003ca href=\"http:\/\/www.waveshare.com\/wiki\/USB_TO_TTL_(B)\" target=\"_blank\" rel=\"noopener\"\u003eUSB_TO_TTL_(B)\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003chr class=\"ws-divider\"\u003e\n\n\n  \u003ch2\u003eModel Comparison\u003c\/h2\u003e\n\n  \u003ctable\u003e\n\n    \u003ctbody\u003e\n\n      \u003ctr\u003e\n\n        \u003cth rowspan=\"2\"\u003ePart No.\u003c\/th\u003e\n\n        \u003cth style=\"width:20%\"\u003e\u003ca href=\"https:\/\/www.waveshare.com\/USB-TO-TTL.htm\" target=\"_blank\" rel=\"noopener\"\u003eUSB TO TTL\u003c\/a\u003e\u003c\/th\u003e\n\n        \u003cth style=\"width:20%\"\u003e\u003ca href=\"https:\/\/www.waveshare.com\/USB-TO-TTL-B.htm\" target=\"_blank\" rel=\"noopener\"\u003eUSB TO TTL (B)\u003c\/a\u003e\u003c\/th\u003e\n\n        \u003cth style=\"width:20%\"\u003e\u003ca href=\"https:\/\/www.waveshare.com\/USB-TO-TTL-C.htm\" target=\"_blank\" rel=\"noopener\"\u003eUSB TO TTL (C)\u003c\/a\u003e\u003c\/th\u003e\n\n        \u003cth style=\"width:20%\"\u003e\u003ca href=\"https:\/\/www.waveshare.com\/USB-TO-TTL-D.htm\" target=\"_blank\" rel=\"noopener\"\u003eUSB TO TTL (D)\u003c\/a\u003e\u003c\/th\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003ctd\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-10.jpg?v=1780209567\" alt=\"USB TO TTL\"\u003e\u003c\/td\u003e\n\n        \u003ctd\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-B-10.jpg?v=1780209569\" alt=\"USB TO TTL (B)\"\u003e\u003c\/td\u003e\n\n        \u003ctd\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-C-10.jpg?v=1780209572\" alt=\"USB TO TTL (C)\"\u003e\u003c\/td\u003e\n\n        \u003ctd\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/USB-TO-TTL-D-10_fd106206-3966-4700-af8a-5221a44d3fe3.jpg?v=1780209574\" alt=\"USB TO TTL (D)\"\u003e\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eCategory\u003c\/th\u003e\n\n        \u003ctd colspan=\"2\"\u003eIndustrial USB TO TTL Converter\u003c\/td\u003e\n\n        \u003ctd colspan=\"2\"\u003eIndustrial USB TO TTL Cable\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eChip\u003c\/th\u003e\n\n        \u003ctd\u003eFT232\u003c\/td\u003e\n\n        \u003ctd\u003eCH343G\u003c\/td\u003e\n\n        \u003ctd colspan=\"2\"\u003eFT232\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eBaud Rate\u003c\/th\u003e\n\n        \u003ctd\u003e300bps — 3Mbps\u003c\/td\u003e\n\n        \u003ctd\u003e50bps — 6Mbps\u003c\/td\u003e\n\n        \u003ctd colspan=\"2\"\u003e300bps — 3Mbps\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eHardware flow control\u003c\/th\u003e\n\n        \u003ctd colspan=\"3\"\u003eSupported\u003c\/td\u003e\n\n        \u003ctd\u003eNot Supported\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eOS Support\u003c\/th\u003e\n\n        \u003ctd colspan=\"4\"\u003eWin7\/8\/8.1\/10\/11, Mac, Linux, Android\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eUSB Port\u003c\/th\u003e\n\n        \u003ctd colspan=\"4\"\u003eConnector: USB-A\u003cbr\u003eProtection: self-recovering fuse, ESD protection\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eUART Port\u003c\/th\u003e\n\n        \u003ctd colspan=\"2\"\u003eConnector: 8-pin fool-proof connector\u003cbr\u003eProtection: IO protection diode\u003c\/td\u003e\n\n        \u003ctd\u003eConnector: 6-pin female header\u003cbr\u003eProtection: IO protection diode\u003c\/td\u003e\n\n        \u003ctd\u003eConnector: 4-pin female header + SH1.0 3-pin fool-proof connector\u003cbr\u003eProtection: IO protection diode\u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n\n        \u003cth\u003eIndicators\u003c\/th\u003e\n\n        \u003ctd colspan=\"4\"\u003e\n\n          \u003cstrong\u003ePWR\u003c\/strong\u003e — power indicator, lights up when USB is connected and voltage is detected\u003cbr\u003e\n          \u003cstrong\u003eTXD\u003c\/strong\u003e — TX indicator, lights up when data is sent from the USB port\u003cbr\u003e\n          \u003cstrong\u003eRXD\u003c\/strong\u003e — RX indicator, lights up when data is sent back from the device port\n        \u003c\/td\u003e\n\n      \u003c\/tr\u003e\n\n    \u003c\/tbody\u003e\n\n  \u003c\/table\u003e\n\n\n\u003c\/section\u003e","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":53095935115580,"sku":"2684^ЩУ","price":440.0,"currency_code":"UAH","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0868\/0462\/7772\/files\/usb-to-ttl-b-1.jpg?v=1780209539","url":"https:\/\/informatica.com.ua\/en\/products\/adapter-usb-to-ttl-b-21550","provider":"Informatica","version":"1.0","type":"link"}