{"product_id":"usb-to-dc-boost-cable-5v-9v-12v-5-5mm-3-5mm-adapter-router-modem","title":"USB to DC Boost Cable 5V→9V\/12V — 5.5×2.1mm \u0026 3.5×1.35mm Adapter for Router \u0026 Modem","description":"\u003ch2\u003eUSB to DC Boost Cable 5V → 9V \/ 12V — 5.5×2.1mm \u0026amp; 3.5×1.35mm Adapter\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eUSB-A to DC barrel jack boost converter cable\u003c\/strong\u003e steps up a standard 5V USB power bank or charger output to \u003cstrong\u003e9V or 12V DC\u003c\/strong\u003e, enabling you to power routers, modems, network switches, and other 9V\/12V devices directly from a USB power source. The built-in boost converter is integrated into the cable body. Includes both a \u003cstrong\u003e5.5×2.1mm\u003c\/strong\u003e and a \u003cstrong\u003e3.5×1.35mm\u003c\/strong\u003e DC plug adapter to cover the two most common barrel jack sizes used on routers and modems.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003eUSB-A, 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e9V or 12V DC (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e9V: up to 2A | 12V: up to 0.8A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDC Plug (primary)\u003c\/td\u003e\n\u003ctd\u003e5.5×2.1mm barrel jack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDC Plug (adapter)\u003c\/td\u003e\n\u003ctd\u003e3.5×1.35mm adapter included\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003eApproximately 0.8m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~38g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Use a USB Boost Cable?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower routers from power banks\u003c\/strong\u003e — Keep your router online during power outages using a standard USB power bank; no inverter or special UPS needed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual plug compatibility\u003c\/strong\u003e — Included 3.5×1.35mm adapter covers TP-Link, D-Link, Netgear, and other routers that use the smaller barrel jack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact boost circuit\u003c\/strong\u003e — Converter integrated into the cable body; no separate module or enclosure required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e9V@2A output\u003c\/strong\u003e — Sufficient for most home routers and ADSL\/fiber modems rated at 9V\/1A or 9V\/1.5A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12V@0.8A output\u003c\/strong\u003e — Suitable for 12V routers, LED strips, and small 12V accessories with low current draw\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Devices (Examples)\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTP-Link routers (9V\/0.85A, 9V\/1A models) — use 5.5×2.1mm plug\u003c\/li\u003e\n  \u003cli\u003eD-Link routers (12V\/1A models) — use 5.5×2.1mm plug\u003c\/li\u003e\n  \u003cli\u003eNetgear routers (12V\/1.5A models) — verify current draw does not exceed 0.8A at 12V\u003c\/li\u003e\n  \u003cli\u003eADSL\/fiber modems with 9V\/12V DC input\u003c\/li\u003e\n  \u003cli\u003eSmall 12V LED strips and accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: Can this power a router that requires 12V\/1.5A?\u003c\/h3\u003e\n\u003cp\u003eThe 12V variant outputs a maximum of \u003cstrong\u003e0.8A\u003c\/strong\u003e. A router requiring 1.5A at 12V (18W) exceeds this limit. Check your router’s power adapter label for the current requirement before ordering. The 9V@2A variant is suitable for most home routers rated at 9V\/1A or 9V\/1.5A.\u003c\/p\u003e\n\n\u003ch3\u003eQ: Does the USB power bank need to support any special protocol?\u003c\/h3\u003e\n\u003cp\u003eNo special protocol (QC, PD) is required. The boost converter draws standard 5V from the USB port. Use a power bank with at least 2A USB output capacity for stable 9V@2A operation.\u003c\/p\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1× USB to DC Boost Cable (9V or 12V per selected variant)\u003c\/li\u003e\n  \u003cli\u003e1× 3.5×1.35mm DC plug adapter\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"1 PCS","offer_id":46978930180331,"sku":"14:1254#1 PCS","price":6.76,"currency_code":"USD","in_stock":true},{"title":"3 PCS","offer_id":46978930213099,"sku":"14:691#3 PCS","price":16.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/usb-to-dc-5-5mm-3-5mm-power-boost-cable-5v-to-9v-12v-adapter-router-modem-emergency.webp?v=1761023639","url":"https:\/\/keszoox.com\/products\/usb-to-dc-boost-cable-5v-9v-12v-5-5mm-3-5mm-adapter-router-modem","provider":"Keszoox","version":"1.0","type":"link"}