Best USB Hub for MIDI Controllers: Powered Picks and Power Math
Picking the best USB hub for MIDI controllers is mostly a power decision, because every bus-powered keyboard and pad you add draws its current through the hub.
Run three boards from a hub that hangs off one laptop port and that port has to feed all three, which is the setup controller makers tell you to rule out first when a board won’t connect.
The USB 2.0 specification requires a hub with its own supply to give each port 500 milliamps, five times the 100 a hub running off your computer can promise.
This guide compares five powered hubs by what their makers publish about power and data speed, then shows how to check your own controllers against those numbers.
The picks come first, followed by the power math, the iPad details and the fixes for a board that keeps dropping out.
What Is the Best USB Hub for MIDI Controllers?
That depends on how many boards you run, but the TP-Link UH720 is the best USB hub for MIDI controllers on paper for most desks. TP-Link lists seven USB 3.0 data ports, two separate 5-volt, 2.4-amp charging ports and a 12-volt, 3.3-amp adapter in the box, and says the hub needs no drivers on Windows, macOS or Linux (TP-Link).
The other four each fit a narrower setup:
| Pick | Data ports | Supply, per the maker | Per-port figure, per the maker | Best for |
|---|---|---|---|---|
| TP-Link UH720 | 7 USB-A | 12 V, 3.3 A adapter | Not listed | Most desks |
| Sabrent HB-BU10 | 10 USB-A | 60 W | Not listed | Big rigs |
| UGREEN 7-in-1 Powered USB-C Hub | 5 USB-A, 2 USB-C | 24 W adapter | 5 W to 7.5 W | USB-C laptops and iPads |
| Rosonway RSH-H7C4 | 3 USB-A, 4 USB-C | 12 V, 3 A (36 W) adapter | Not listed | USB-C controllers |
| Atolla 4-Port USB 3.0 Hub | 4 USB-A | 5 V, 3 A adapter | Not listed | Two to four boards |
Each pick had at least 4.0 stars and 50 reviews on Amazon and was in stock on 7 October 2026, and no prices appear because they change often.
If this is your first time adding a second board, our guide to running two MIDI controllers at the same time covers the DAW side.
Which Powered USB Hub Should You Buy?
Those five split by how many boards you run and which plug your computer takes: the TP-Link for most desks, the Sabrent for up to ten boards, the UGREEN or Rosonway for USB-C, and the Atolla for four. Count only data ports, because TP-Link says its charging ports are for charging and won’t sync data.
TP-Link UH720
For a desk with more boards than your computer has ports, the TP-Link UH720 is the pick.
the TP-Link UH720
TP-Link’s product page puts the adapter and a 1-meter USB 3.0 cable in the box, and adds protection against over-heating, over-current, over-voltage and short circuits. Its listing says the seven data ports are meant for data and don’t put out enough power for charging, and asks you to connect the adapter before using the hub.
That leaves one gap: TP-Link doesn’t say how much current each of those seven gives, so the USB rules later in this guide are the floor you’re relying on.
Sabrent HB-BU10
For a big rig, the Sabrent HB-BU10 gives every board its own port and switch.
the Sabrent HB-BU10
Sabrent’s listing turns one USB 3.0 port on your computer into ten, with a blue light beside each switch and no driver to install. A switch for every port matters more for MIDI than it sounds, because you can restart one frozen controller without touching the other nine.
UGREEN 7-in-1 Powered USB-C Hub
For a USB-C laptop or iPad, the UGREEN 7-in-1 Powered USB-C Hub is the only pick whose maker publishes a per-port figure.
the UGREEN 7-in-1 Powered USB-C Hub
UGREEN’s listing gives each port 5 to 7.5 watts, which works out to 1 to 1.5 amps at USB’s nominal 5 volts, at or above the 900 milliamps the USB 3.2 specification asks of each port on a self-powered hub. Every port has its own switch and light, and the hub reaches your computer through a 1-meter USB-C cable.
UGREEN says it’s built for data expansion and doesn’t charge the host, so an iPad plugged into it runs on battery for the session.
Rosonway RSH-H7C4
For controllers with USB-C sockets, the Rosonway RSH-H7C4 puts four USB-C data ports beside three USB-A.
the Rosonway RSH-H7C4
Rosonway’s listing rates every port at 10 Gbps and runs the hub from a 12-volt, 3-amp adapter, with a tap to switch one on and a two-second press to switch it off. Its detachable 3.3-foot USB-C cable runs to the computer, and Rosonway lists Windows, macOS, Linux and Android.
Atolla 4-Port USB 3.0 Hub
For two to four boards beside a laptop, the Atolla 4-Port USB 3.0 Hub covers it with a switch on every port.
the Atolla 4-Port USB 3.0 Hub
Atolla’s listing shows a tap to switch a port on, a press-and-hold to switch it off, and a power indicator light. Four controllers at 500 milliamps each would total 2 amps, inside its 3-amp adapter before you charge a phone from the fifth port.
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No spam. Unsubscribe anytime.Do USB Hubs Work With MIDI Controllers?
All five rest on the answer being yes, and it is: a hub only extends your computer’s port, so the controller still reaches your music software. The MIDI Association describes a hub as a device that expands one USB port into several, and says that if your devices take their power from USB, you may need a powered hub (MIDI Association).
The computer, tablet or phone stays in charge, because the MIDI Association explains that USB is a host-controlled bus. A hub can’t connect a controller straight to a hardware synth, and a USB host box for a USB-only keyboard is a different setup.
Controller makers treat hubs with caution rather than banning them. Akai’s MPK mini Plus guide says any hub it’s connected to should be powered, FL Studio’s manual suggests a free port on the computer first, and M-Audio lists hubs among the usual causes of poor communication.
So use a hub to add ports, and give it its own power supply.
Why Does a Powered Hub Matter?
Power is the condition every one of those makers comes back to, and the USB specification puts numbers on it. Under USB 2.0, a hub running off your computer can promise each port only 100 milliamps, while a hub with its own supply must give every port 500 (USB-IF).
The specification counts current in unit loads of 100 milliamps: a device can draw one, or up to five once the computer allows it, and a computer on external power must supply five to each of its own ports. A hub fed by your computer can promise only one per port however little the others use, which is the gap a self-powered hub closes.
Battery-powered computers may offer either one or five per port, so a laptop on battery can be the weakest place to start. USB 3.2 raises the unit to 150 milliamps and asks a self-powered hub for six of them, 900 milliamps, on every port.
Think of a hub without its own supply as a power strip plugged into one outlet: it adds sockets, not current. That’s why a hub that copes with one small keyboard can run short when a second board joins it.
How Much Power Does a MIDI Controller Draw?
Knowing those limits only helps if you know your controller’s draw, and Korg is one maker that prints it. Korg lists the nanoKEY2 at less than 100 milliamps from USB bus power, and the nanoKEY Studio at less than 500 (Korg).
| Controller | Power over USB, per Korg | What that means on a hub |
|---|---|---|
| nanoKEY2 | Less than 100 mA | Fits the 100 mA a computer-powered hub promises |
| nanoKONTROL2 | Less than 100 mA | Fits the 100 mA a computer-powered hub promises |
| microKEY2 | Less than 100 mA | Fits the 100 mA a computer-powered hub promises |
| nanoKEY Studio | Less than 500 mA | Needs a port that can supply up to 500 mA |
| Keystage | 500 mA or less | Needs a port that can supply up to 500 mA |
Plenty of makers stop at “bus powered,” and Akai’s MPK mini Plus guide lists USB bus power or a wall adapter with no current figure. Korg’s Keystage can also run from an optional 9-volt KA350 adapter, Korg’s alternative to USB bus power.
The test takes a minute: add up the figures for everything you’ll plug in, then compare the total with the hub’s supply. Three nanoKEY Studios at up to 500 milliamps make 1.5 amps, inside even the Atolla’s 3-amp adapter.
Korg’s microKEY2 page also notes power supply issues when the board runs through a USB-C to USB adapter on a Mac’s Thunderbolt 3 ports. If that’s your setup and the board misbehaves, try it on a self-powered hub before blaming the controller.
Does the Hub’s USB Speed Matter for MIDI?
Speed matters far less than that power budget, because MIDI uses a sliver of any USB link. The original 5-pin MIDI cable runs at 31,250 bits per second, Microsoft notes, against 12 megabits per second for USB’s full speed and up to 480 for high speed, per the MIDI Association.
So the 5 gigabits of USB 3.0, or Rosonway’s 10, matter for drives sharing the hub, not for the notes and knob moves a controller sends. TP-Link adds that the UH720 is backward compatible with USB 2.0 and 1.1, with each device running at its own speed.
Pick by data ports and supply, then let the speed rating break ties when a drive shares the hub.
Can an Audio Interface Share the Hub?
An audio interface changes that small MIDI load, because the MIDI Association notes many interfaces carry audio and MIDI over the same USB cable. It can go through the hub like any USB device, but if a dropout would ruin the take, it’s the device to plug straight into the computer.
FL Studio’s manual groups controllers and audio interfaces together when it warns that sleeping USB ports can cause intermittent connection failures. With the controllers on the hub and the interface on its own port, a dropout tells you which side to check.
Will a Hub Work With an iPad or iPhone?
Yes, and a tablet or phone tightens those same limits, which is why Apple’s own answer is a powered hub. Apple lists hubs and audio/MIDI devices among the accessories its USB-A camera adapters support, and says a device that needs more power than an iPhone or iPad can give may bring up an “attached accessory uses too much power” alert (Apple).
Apple’s fixes are a powered USB-A hub or the Lightning to USB 3 Camera Adapter, whose Lightning port connects to the USB power adapter that came with your device and powers both the device and the accessory. On a USB-C iPad, Apple lists hubs and docks, and audio interfaces and MIDI devices, among what the connector accepts, with its USB-C to USB Adapter for USB-A plugs.
The UGREEN pick’s USB-C cable fits a USB-C iPad directly, though UGREEN says it won’t charge the device it’s connected to. Unlock your iPad first, because Apple says a locked iPhone or iPad won’t communicate with a newly connected accessory.
For the app side, our steps to connect a MIDI keyboard to GarageBand on iPad pick up from there.
Why Does a Controller Keep Dropping Out?
Even with a powered hub, a board can drop out, and the makers’ checklists start in the same place: take the hub out of the chain. M-Audio blames poor communication on hubs, extra cable length or too many USB devices, and its first steps are a different cable, a different port and no hub, noting how the device behaves with and without one.
If it only fails on the hub, check the supply first: the adapter has to be connected, which TP-Link asks for before use, and your controllers’ figures have to fit it. A switch on each port lets you restart one frozen board without pulling cables.
On Windows, FL Studio says to switch off the “USB selective suspend” setting, which puts idle ports to sleep and can cause intermittent failures with controllers and audio interfaces. Microsoft’s driver documentation says the feature suspends one idle port on a hub without affecting the others and strongly recommends keeping it on, so treat switching it off as a test, not a permanent setting.
On an iPad, Apple’s fix for an accessory that still isn’t recognized after unlocking is to disconnect it, unlock your iPad and reconnect it. If notes arrive late rather than not at all, Burton Acoustix’s guide to MIDI keyboard delay covers buffers and drivers.
Which Hubs Didn’t Make the List?
Those fixes all assume a hub with its own supply, which is why hubs that run only off your computer were left out. Under the USB 2.0 rules, such a hub can promise each port 100 milliamps, enough for a Korg nanoKEY2 but not for a 500-milliamp board.
Multiport USB-C adapters for laptops, with HDMI and card readers, were left out too, since a MIDI rig needs powered data ports rather than video outputs. Some well-rated hubs missed on stock or detail: Atolla’s 8-port version showed one left on 7 October, and Sabrent’s HB-B7C3 gives three of its ten ports to charging.
A USB MIDI host, which takes the computer’s place between a USB controller and a synth, is a different device from a hub and isn’t covered here.
What Should You Check Before You Buy?
Those exclusions came down to power, ports and missing detail, and your own checks come down to the same things. Four take a minute each:
- The hub has its own adapter, and the listing gives its rating.
- Your controllers’ published draw adds up to less than that supply.
- Every board gets its own data port, not counting charging ports.
- The cable fits your computer or iPad, USB-A or USB-C.
Keep the box until every board has run a full session on the hub.
The Bottom Line
So buy the TP-Link UH720 for most desks, or the Sabrent HB-BU10 when you run more than seven boards.
Choose the UGREEN for a USB-C laptop or iPad, the Rosonway for USB-C controllers, and the Atolla when two to four boards sit beside a laptop.
Frequently Asked Questions
Is there a downside to using a USB hub?
It adds a link to the chain, which is why makers’ troubleshooting guides take it out first. M-Audio lists hubs, long cables and too many USB devices among the usual causes of poor communication, and FL Studio warns of connection and power-related issues. A self-powered hub deals with the power side, and plugging the device you can least afford to lose, usually the audio interface, straight into the computer covers the rest.
Are all powered USB hubs the same?
No. The five here range from Atolla’s 5-volt, 3-amp adapter to Sabrent’s 60 watts, only UGREEN publishes a per-port figure, and TP-Link’s two charging ports carry no data. The USB specification sets the floor: a hub with its own supply must give each USB 2.0 port 500 milliamps and each USB 3.2 port 900. Compare the supply, the data ports and the cable before anything else.
How many MIDI controllers can one hub handle?
As many as it has data ports and power for. The MIDI Association notes that USB allows up to 127 devices on one bus in theory, and the USB 2.0 specification allows up to five hubs between the computer and any device. Among these picks, the Sabrent HB-BU10’s ten data ports and 60-watt supply set the ceiling, and adding up your controllers’ published draw tells you whether a smaller hub will cope.
Can a USB hub connect a controller to a synth without a computer?
No. USB is a host-controlled bus, the MIDI Association explains, so a hub only extends a computer’s, tablet’s or phone’s connection and needs one of them at the top of the chain. Playing a hardware synth from a USB-only controller takes a USB MIDI host, a separate kind of box, or a controller with a 5-pin MIDI out, like the Akai MPK mini Plus.
Does a USB hub add delay to MIDI?
None of the hub makers here publishes a delay figure, so that stays an open question. What’s documented is bandwidth: MIDI’s original cable runs at 31,250 bits per second, Microsoft notes, while USB’s full and high speeds reach 12 and 480 megabits per second. The controller makers’ warnings about hubs concern dropped connections and power rather than timing.
