USB Hub Not Charging Your Devices? Power Delivery Explained
By Plugable #1 in Docking Stations and USB Devices ~ Plugable ... | Published: 2026-10-14
Category: Tips & Care
If your USB hub isn't charging your phone or laptop, the cause is usually power delivery limits, not a broken hub. Learn how to diagnose and fix it.
Quick answer
A USB hub not charging your devices is almost always a power problem, not a broken hub. Check three things: whether the hub has its own power adapter, whether the port supports USB Power Delivery, and whether your laptop's USB-C port can output enough wattage. If the hub is bus-powered or the port is data-only, charging will be slow or nonexistent. For reliable charging, use a powered USB hub with a dedicated AC adapter.
Why your USB hub won't charge: bus power vs. external power
Most small USB hubs are bus-powered, meaning they draw all their electricity from the host device—your laptop or desktop. A standard USB-A port provides about 4.5 watts (5V at 0.9A), and USB-C ports can provide more, but the hub itself and any connected peripherals compete for that limited power. When you plug in a phone, the hub may only pass through a fraction of what the phone needs to charge at normal speed, or it may not charge at all if the total draw exceeds what the host allows.
A powered USB hub, by contrast, includes its own AC adapter that supplies dedicated power to the ports. That means each port can deliver consistent charging current without draining your laptop battery or causing the hub to shut down. If you regularly charge multiple devices or use power-hungry peripherals like external drives, a powered hub is the practical choice.
Check your hub's power delivery capabilities
Not all USB-C ports are created equal. Some hubs support USB Power Delivery (USB PD) pass-through, which lets you connect your laptop's charger to the hub and pass power through to the laptop while also powering the hub's other functions. But the amount of power that reaches your laptop depends on the charger and the hub's rating. For example, if you use a 60W charger with a hub that reserves 10W for its own operation, your laptop may only receive 50W—enough for a phone but not for a power-hungry laptop under load.
Also, check whether the hub's USB-C port is labeled for data only or for charging. Some compact hubs include a USB-C port that is data-only, meaning it won't charge anything. Reading the specifications carefully avoids this common trap.
When to choose a charging hub vs. a data hub
If your main goal is to charge multiple phones, tablets, or accessories, look for a hub explicitly designed as a charging hub. These often have higher-wattage adapters and may prioritize charging over data speed. A data hub, on the other hand, focuses on transferring files and connecting peripherals, and its charging capability may be minimal or absent.
For a mix of data and charging, a powered USB 3.0 hub with a robust AC adapter—like the Plugable USB 3.0 and USB-C 7-Port Charging Hub—can serve both roles. It includes a 60W UL-certified adapter and can function as a standalone charging station or as a data hub using the included hybrid cable.
Diagnosis: USB hub not charging
- Symptom: Device doesn't charge at all: The hub may be bus-powered and unable to supply enough current, or the port may be data-only. Check if the hub has an external power adapter and if the port supports charging. If the hub is bus-powered, try a powered hub. If the port is data-only, use a different port or hub.
- Symptom: Device charges slowly: The hub or charger may not support enough wattage for your device. For example, a phone may only draw 5W from a 10W port, but a laptop needs 45W or more. Use a higher-wattage charger and ensure the hub supports USB PD pass-through at the required level.
- Symptom: Hub disconnects when charging: The total power draw exceeds what the host port can provide, causing the hub to shut down or reset. This often happens when multiple devices are connected. Switch to a powered hub with its own AC adapter to avoid overloading the host.
- When to stop troubleshooting and choose another option: If you've confirmed the hub is powered, the ports support charging, and the charger is adequate, but charging still fails, the hub may be defective or incompatible with your device. Consider a different hub model or contact the manufacturer for support.
Product facts
- Plugable USB 3.0 and USB-C 7-Port Charging Hub: This USB 3.0 powered hub, backed by a robust 60W UL-certified AC adapter, functions flawlessly as a standalone charging hub or as a USB3 hub using the included 2-in-1 hybrid USB-C/USB-A cable. The dedicated 60W adapter ensures each of the seven ports can deliver consistent power for charging, unlike bus-powered hubs that share limited host power.
- Plugable 9-in-1 USB-C Hub with 4K HDMI, 140W Pass-Through Charging: The Plugable USBC-9IN1E is a compact USB-C hub Thunderbolt 4 multiport adapter that makes it easy to add the connections many modern laptops leave behind. It allows you to use one USB-C port to connect a 4K 60Hz HDMI display, fast USB accessories, wired Ethernet, and SD or microSD cards in one portable hub with a built-in 7.48-inch cable. This hub supports pass-through charging up to 140W, so you can power your laptop while using multiple peripherals, but it requires a compatible USB-C power adapter to do so.
