Will I need to plug in power to this USB controller card from my power supply? - StarTech.com IT Pro Community
<main> <article class="userContent"> <h2 data-id="optional">Optional</h2><p>Applies to these products: <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fpusb%2Fpci312pusb" rel="nofollow noreferrer ugc">PCI312PUSB</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpciusb3s22" rel="nofollow noreferrer ugc">PCIUSB3S22</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpciusb3s4" rel="nofollow noreferrer ugc">PCIUSB3S4</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fpusb%2Fpex312pusb" rel="nofollow noreferrer ugc">PEX312PUSB</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb312eic" rel="nofollow noreferrer ugc">PEXUSB312EIC</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb314a2v" rel="nofollow noreferrer ugc">PEXUSB314A2V</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s11" rel="nofollow noreferrer ugc">PEXUSB3S11</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s2" rel="nofollow noreferrer ugc">PEXUSB3S2</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s22" rel="nofollow noreferrer ugc">PEXUSB3S22</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s24" rel="nofollow noreferrer ugc">PEXUSB3S24</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s25" rel="nofollow noreferrer ugc">PEXUSB3S25</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s2e2i" rel="nofollow noreferrer ugc">PEXUSB3S2E2I</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s2ei" rel="nofollow noreferrer ugc">PEXUSB3S2EI</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s4" rel="nofollow noreferrer ugc">PEXUSB3S4</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s400" rel="nofollow noreferrer ugc">PEXUSB3S400</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb400" rel="nofollow noreferrer ugc">PEXUSB400</a></p><p>These tagged USB expansion cards derive power from the PCI or PCI Express slot on the motherboard. When high-powered USB devices are connected to the USB expansion card, the power provided by the slot may not be enough to power all of the devices and you should connect additional sources of power. When you troubleshoot issues, you should connect an additional source of power.</p><p>Symptoms that you are experiencing power-related issues include certain devices not working correctly, not all of the devices working at the same time, and certain devices not working at all.</p><p>Examples of low-powered USB devices include USB mice, keyboards, and flash drives. An example of a high-powered USB device is an external hard drive that does not have an external source of power.</p><h2 data-id="required">Required</h2><p>Applies to these products: <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb312a" rel="nofollow noreferrer ugc">PEXUSB312A</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb3s23" rel="nofollow noreferrer ugc">PEXUSB3S23</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpexusb7lp" rel="nofollow noreferrer ugc">PEXUSB7LP</a></p><p>Yes, it is required to use the included power connector with this card. Additional power is required above what the PCI or PCI Express slot on the motherboard is able to provide. If the power connector is not used with the card, the devices used with the card are not likely to function correctly, and the ports on the card will not be able to output the maximum amount of power USB is capable of.</p> </article> </main>