{"id":22747,"date":"2024-06-11T20:23:24","date_gmt":"2024-06-11T20:23:24","guid":{"rendered":"https:\/\/www.auslogics.com\/en\/articles\/?p=22747"},"modified":"2025-10-16T00:26:01","modified_gmt":"2025-10-16T00:26:01","slug":"check-usb-ports-power-output","status":"publish","type":"post","link":"https:\/\/www.auslogics.com\/en\/articles\/check-usb-ports-power-output\/","title":{"rendered":"How to Check the Power Output of a USB Port in Windows 10?"},"content":{"rendered":"<p>Your PC supplies current to its USB ports, which are used to read peripherals such as a mouse, keyboard, camera, smartphone, hard drive, and other storage devices.<\/p>\n<p>However, did you know that the power output of your computer\u2019s USB port determines how fast you can transfer files or charge a connected device? It also affects capabilities for facilitating <a href=\"https:\/\/www.auslogics.com\/en\/articles\/windows-10-backup-guide-backing-up-to-an-external-hard-drive\/\">system backups <\/a> and large file transmissions.<\/p>\n<p>Moreover, USB voltage output will determine whether your device can only run <a href=\"https:\/\/www.auslogics.com\/en\/articles\/fix-usb-mouse-and-keyboard-stopped-working\/\">keyboards <\/a>, printers, and mice. Since power is an essential factor in USB usage, you must learn how much your ports are supplying.<\/p>\n<p>If it is inadequate, you might not be able to use your USB device on your computer.<\/p>\n<hr \/>\n<p><b>\ud83d\udccc Related<\/b>: <a href=\"https:\/\/www.auslogics.com\/en\/articles\/usb-device-over-current-status-detected\/\">How to Fix \u201cUSB Device Over Current Status Detected\u201d? <\/a><\/p>\n<hr \/>\n<h2>How Many Watts Is a Computer USB Port?<\/h2>\n<p>One thing every computer user must know is that not all USB ports are the same. <a href=\"https:\/\/www.lifewire.com\/universal-serial-bus-usb-2626039\" target=\"_blank\" rel=\"noopener nofollow\">Universal Serial Bus technology <\/a> has seen a couple of improvements since the inception of USB 1.0 in the 1990s. Each time a new USB standard is introduced, we witness an increase in data transfer rate and power output.<\/p>\n<p>So, how much power can a USB 2.0, USB 3.0, and USB 3.1 port supply? On a desktop PC or laptop, you\u2019d usually have charging downstream ports (CDPs).<\/p>\n<p>However, sometimes, you may find that your PC also has a standard downstream port (SDP). A charging downstream port, also known as a charge and sync port, can charge your connected device while enabling you to send and receive data.<\/p>\n<p>However, standard downstream ports are for data transfers only.<\/p>\n<hr \/>\n<p><b>\ud83d\udccc Also read<\/b>: <a href=\"https:\/\/www.auslogics.com\/en\/articles\/how-to-speed-up-usb-3-0-transfer-speed\/\">How to speed up USB 3.0 transfer speed in Windows 10? <\/a><\/p>\n<hr \/>\n<div class=\"notebox\">\r\n\t<div class=\"notebox__heading\">Here are what different types of ports can supply:<\/div>\r\n\t<div class=\"notebox__text\"><\/p>\n<ul>\n<li aria-level=\"1\">USB 1.0, USB 1.1, and USB 2.0 standard downstream ports are capable of supplying up to 500 mA (milliamperes).<\/li>\n<li aria-level=\"1\">USB 3.0 standard downstream ports are capable of delivering up to 900 milliamps (mA) of power.<\/li>\n<li aria-level=\"1\">USB 3.0 charging downstream ports can deliver up to 1,500 milliamps (mA) of power.<\/li>\n<\/ul>\n<p><\/div>\r\n<\/div>\r\n\n<h2>How to Check Power Output of a USB Port on Windows 10<\/h2>\n<p>that is being used by your connected devices. You can do so with the help of the Device Manager, but that\u2019s not the only option. You can use specialized hardware known as a USB voltmeter to check the power supply of a USB port.<\/p>\n<p>These devices are quite affordable. Meanwhile, some third-party software programs can detect the properties of your USB port, including the power output.<\/p>\n<p>Here are your options:<\/p>\n<h3>Option 1: Use the device manager to check the power output of your USB ports<\/h3>\n<p>Follow the procedure below:<\/p>\n<ul>\n<li>Open the Device Manager. You can do so by right-clicking on the Start button in the bottom-left corner of your screen or by pressing the <code>Windows + X<\/code> keyboard combination. Then, click on <em>Device Manager<\/em> from the Power User menu.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/open-device-manager-3.webp\" alt=\"Click on Device Manager.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<div class=\"notebox\">\r\n\t<div class=\"notebox__heading\">Note<\/div>\r\n\t<div class=\"notebox__text\">Alternatively, you can launch the Run dialog box by pressing the <code>Windows + R<\/code> keyboard combination. Type <code>Devmgmt.msc<\/code>\u00a0into the search field and click <em>OK<\/em> or press <em>Enter<\/em> on your keyboard.<\/div>\r\n<\/div>\r\n\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/device-manager-screen-1.png\" alt=\"You will be taken to the Device Manager app.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>Once you are in the <em>Device Manager<\/em>, scroll down and locate <em>Universal Serial Bus controllers<\/em>. Double-click on the category or click the drop-down arrow on the left-hand side to reveal your USB devices.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/expand-usb-controllers-1.png\" alt=\"Expand Universal Serial Bus controllers.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>Right-click on an entry named USB Composite Device, Generic USB Hub, or USB Root Hub. Then, click on Properties in the context menu.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/open-properties-1.png\" alt=\"Select Properties from the menu.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>Switch to the <em>Power Management<\/em> tab.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/power-management-tab.webp\" alt=\"Go to the Power Management tab.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>In the <em>Hub Information<\/em> field, check the total power available. It could be something like 500 mA per port.<\/li>\n<li>In the attached devices field, you will see the peripherals that are connected to your computer on the hub and the amount of power they require.<\/li>\n<li>Repeat Step 3 and Step 4 to find out the capabilities of the other USB hubs.<\/li>\n<\/ul>\n<p>You can also check the power details of your USB ports. Here\u2019s how to do so:<\/p>\n<ul>\n<li>Switch to the <em>Details<\/em> tab.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/details-tab.webp\" alt=\"Go to the Details tab.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>Expand the <em>Device Description<\/em> drop-down.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/expand-device-description-1.png\" alt=\"Expand the Device Description drop-down.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>Locate <em>Power Data<\/em> in the list of options and click on it.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/power-data-1.png\" alt=\"Click Power data.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>You will see the power details of the USB port in the Value field. Here\u2019s how to interpret them:<\/li>\n<li>See what you have under <em>Current Power State<\/em>.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/current-power-state-1.png\" alt=\"Go to Current Power State.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>Look under Power Capabilities. You may see D0 Supported, D2 Supported, or D3 Supported.<\/li>\n<\/ul>\n<div class=\"screenshots\">\r\n  <div class=\"screenshots__image-shadow\">\r\n    <img data-src=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2021\/06\/look-under-power-capabilities-1.png\" alt=\"Go under Power Capabilities.\" class=\"lazyload screenshots__image\">\r\n  <\/div>\r\n  <div class=\"screenshots__description\"><\/div>\r\n<\/div>\n<ul>\n<li>D0 means that the device is fully powered. It is the working state.<\/li>\n<li>D1 and D2 are intermediate sleep states.<\/li>\n<li>D3 is the deep sleep state.<\/li>\n<\/ul>\n<p>When you are done researching the descriptions of your USB ports, you can close the Device Manager.<\/p>\n<div class=\"notebox\">\r\n\t<div class=\"notebox__text\">You can follow the same steps on Windows 11. <\/div>\r\n<\/div>\n<h3>Option 2: Use A USB voltmeter to measure the power output of your USB ports<\/h3>\n<p>You can use a USB voltmeter to measure the power output of your computer\u2019s USB port.<\/p>\n<p>These devices work with your PC, but you can also use them to find out the power of other gadgets, such as your power banks and car chargers.<\/p>\n<p>You can easily get one from your local computer store, or you can purchase one online.<\/p>\n<hr \/>\n<p><b>\ud83d\udccc Can be useful<\/b>: <a href=\"https:\/\/www.auslogics.com\/en\/articles\/usb-c-not-working-on-windows-10\/\">How to Fix USB-C Port Not Working on Windows 10? <\/a><\/p>\n<hr \/>\n<h3>Option 3: Use a third-party software program to find out your USB properties<\/h3>\n<p>If you don&#8217;t want to spend money on a power-measuring device, opt for an application that you can easily install on your PC.<\/p>\n<p>Only download and install apps from trusted sources. Some apps could be Trojans that open your system to viruses and other sorts of malware.<\/p>\n<p>They may bundle other optional apps that get installed without your permission. Some of these apps can even change your browser settings, exposing your PC to more threats.<\/p>\n<p>Many third-party apps are available online. They can read the properties of your USB ports and display them to you on a user-friendly interface.<\/p>\n<div class=\"cta-block cta-block_native top\" data-cta-type=\"native\" data-cta-position=\"bottom\">\r\n\t<div class=\"cta-block__top\">PRO TIP<\/div>\r\n    <div class=\"cta-block__text_native\">To ensure that you stay safe, we suggest getting <a href=\"\/en\/software\/anti-malware\/after-download\/\">Auslogics Anti-Malware<\/a> . The tool will spot and quickly eliminate any malicious item that may gain access to your system.<\/p>\n<p>This will protect you against viruses that may steal your personal details, corrupt your files, or even damage your PC.<\/div>\r\n    <div class=\"cta-block__btn-group top\">\r\n        <a class=\"cta-block__download-btn\" href=\"\/en\/software\/anti-malware\/after-download\/\">Download for Free<\/a>\r\n        <a class=\"cta-block__learn-more\" href=\"\/en\/software\/anti-malware\/\">Learn More<\/a>\r\n    <\/div>\r\n<\/div>\r\n\n<h2>How to Check USB Power Output on Windows 11<\/h2>\n<p>While <a href=\"https:\/\/www.auslogics.com\/en\/articles\/differences-between-windows-11-and-windows-10\/\">Windows 11 <\/a> does have quite a few new tricks up its sleeve, this is not the case when it comes to checking the laptop\u2019s USB power output. You can use any of the methods listed above to check USB output on Windows 11.<\/p>\n<h2>How to Check the Power Output of a USB Port in Windows 10: Answered<\/h2>\n<p>In this post, we looked at how to find USB output on Windows 10. Knowing the capabilities of your USB ports will help you know the ports that will serve best for the task you want to perform. We hope you\u2019ve found this article useful. You can share your thoughts in the comments section below. We\u2019d love to hear from you.<\/p>\n<h2>FAQ<\/h2>\n<div class=\"faq-box\"><div class=\"faq-box__tabs\"><div class=\"faq-box__tab\">\r\n\t<input id=\"id-1\" class=\"faq-box__checkbox\" type=\"checkbox\" \/>\r\n\t<label class=\"faq-box__label\" for=\"id-1\"><span> How do I know if my USB port is data or power?<\/span><\/label>\r\n\t<div class=\"faq-box__content\"> It is possible to distinguish between a data-only and a power-only USB port by looking closely at the port and seeing how it behaves when attached to a device.\u00a0 Power-only connectors may have a lightning bolt or a battery indicator; data-only connections usually have the standard USB symbol.\u00a0 Furthermore, if a device is plugged into a data-only port, it will generally appear as a recognized device on your computer.\u00a0 In contrast, a power-only port will charge the attached device and won&#8217;t initiate any data transfer.<\/div>\r\n<\/div> <div class=\"faq-box__tab\">\r\n\t<input id=\"id-2\" class=\"faq-box__checkbox\" type=\"checkbox\" \/>\r\n\t<label class=\"faq-box__label\" for=\"id-2\"><span> How do I check my USB port specs?<\/span><\/label>\r\n\t<div class=\"faq-box__content\"> You can check the specifications of your USB port by visiting the manufacturer&#8217;s website or consulting the documentation that came with your computer.\u00a0 You can also use Windows 10&#8217;s Device Manager. Right-click the Start button, choose &#8220;Device Manager,&#8221; and then click the &#8220;Universal Serial Bus controllers&#8221; category to expand it.\u00a0 This is a list of USB ports and controllers. Double-click a port to access its attributes and see details like power output, speed, and others.<\/div>\r\n<\/div> <div class=\"faq-box__tab\">\r\n\t<input id=\"id-3\" class=\"faq-box__checkbox\" type=\"checkbox\" \/>\r\n\t<label class=\"faq-box__label\" for=\"id-3\"><span> What is the power output of a computer's USB port?<\/span><\/label>\r\n\t<div class=\"faq-box__content\"> A computer&#8217;s power output can change depending on the USB port type and the particular device it is linked to. In general, USB ports have a maximum power output of 5 volts.\u00a0 The maximum power output for USB 2.0 ports can be as low as 0.5 amps or as high as 1.5 amps (for USB 3.0 or newer ports).\u00a0 Some ports, particularly those meant for charging, can produce higher power outputs to charge devices faster.<\/div>\r\n<\/div> <div class=\"faq-box__tab\">\r\n\t<input id=\"id-4\" class=\"faq-box__checkbox\" type=\"checkbox\" \/>\r\n\t<label class=\"faq-box__label\" for=\"id-4\"><span> How do I test my USB port for power?<\/span><\/label>\r\n\t<div class=\"faq-box__content\"> You can use several different techniques to check the power of your USB port. One easy method is to simply plug in a device, such as a USB-powered light or smartphone, and observe whether it charges or turns on.\u00a0 If it does, electricity is being supplied from the USB port. Using a multimeter is an alternative method.\u00a0 After setting the multimeter to measure DC voltage, touch the red probe to the power pin and the black probe to the ground pin of the USB port.\u00a0 When there is a voltage reading, the port is providing electricity.<\/div>\r\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>If you want to know how to check the power of a USB port, this guide is for you. We&#8217;ll show you the different types of ports, the power it supplies, and more! keep reading to find everything you need to know! <\/p>\n","protected":false},"author":71,"featured_media":67571,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[879,819,811,831],"tags":[109,1093,145,619],"class_list":["post-22747","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-device-issues","category-how-tos","category-optimization","category-pc-performance","tag-pc-performance","tag-power-management","tag-usb-issues","tag-windows-tweaks"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Check the Power Output of a USB Port in Windows &#8212; Auslogics Blog<\/title>\n<meta name=\"description\" content=\"Want to check the power output of USB ports in Windows 10? 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