what's the different between the one with the external power adapter and the one without?

With my USB 3 Ports on my Acer TC-780 front panel ports, I can power all four ports with thumb drives. When I tried the same with a Dell U473D Slim Multimedia Keyboard with 2 USB Port I had to use the pawer supply that came with the HB-UMP3 4-port Powered USB hub. I would advise getting the powered hub because you don't know if your USB port will support enough devices without the power supply unit.

How many ports can I have active at one time, without overloading the single port of the computer?

actually, while you can theoretically link 127 devices, there is a limitation to the depth or hiearchy you can link hubs (which is 7). In many systems (particularly windows) you may find that the hub controller in the pc can consumer 2 or 3 of those tiers. While that's likely not an issue for most, I've run into a problem when I link a 7 port hub into a KVM switch -- I get an error message stating that the system can not see some devices (because the actual 7 port hub actually contains 2 usb controllers and the kvm switch contains 2 controllers). Suffice it to say -- this is a rare occurrence -- just don't daisy chain a bunch of 4 port hubs together if you run out of ports -- get a hub with more ports

How long is USB3 cable?

measured mine at about 1 meter. I really like this thing. The two red high-power only ports are oriented 180 degrees from the USB 3.0 ports so you physically can't mix them up either.

Will using a 7 usb 3.0 hub ultimately put next to no strain on my motherboard because power is being generated from the AC adapter?

I 5 Gigabyte Motherboard with powerful Intel processor, 16 Ram has moor paver than standard PC. I don't think the hub would help. However, some software might. I will look this up in the later date.

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Sabrent 4-Port USB 3.0 Hub with Individual LED Lit Power Switches, Includes 5V/2.5A Power Adapter (HB-UMP3)

Sabrent 4-Port USB 3.0 Hub with Individual LED Lit Power Switches, Includes 5V/2.5A Power Adapter (HB-UMP3)

Product ID: 232928600

Details

Brand
SABRENT
Colour
Black
Hardware Interface
USB 3.0
Special Feature
Play Plug
Compatible Devices
Card Readers

⚡2.5A external power adapter

💡Individual LED power switches

🔌4 USB 3.0 ports

323.38 DT

Duties & taxes included

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Description

⚡ Power up your productivity with control and speed!

PLUG PLAY SIMPLICITY - No drivers needed—hot swappable and ready to go right out of the box, saving you time and hassle.
BLAZING FAST DATA TRANSFERS - Experience up to 5Gbps transfer speeds—perfect for large files, backups, and seamless multitasking.
RELIABLE EXTERNAL POWER BOOST - Includes a 2.5A power adapter to ensure your high-demand devices stay powered without draining your computer.
EXPAND YOUR WORKSPACE INSTANTLY - Add 4 high-speed USB 3.0 ports to any compatible device—no more juggling cables or devices.
POWER CONTROL AT YOUR FINGERTIPS - Individually switch each port on or off with LED-lit buttons for ultimate device management and energy savings.

The Sabrent 4-Port USB 3.0 Hub (HB-UMP3) is a compact, high-performance USB hub featuring four individual USB 3.0 ports with LED-lit power switches. It supports blazing data transfer speeds up to 5Gbps and comes with a 2.5A external power adapter to reliably power multiple devices simultaneously. Designed for plug-and-play convenience, it’s ideal for professionals needing efficient device management and fast connectivity.

Specifications

ASIN	B00TPMEOYM
Brand	SABRENT
Brand Name	SABRENT
Colour	Black
Compatible Devices	Card Readers, Desktops, Digital Cameras, Headphones, Keyboards, Laptops, Monitors, Mouse, Printers, Scanners, Smartphones, Tablets, USB Flash Drives Compatible Devices Card Readers, Desktops, Digital Cameras, Headphones, Keyboards, Laptops, Monitors, Mouse, Printers, Scanners, Smartphones, Tablets, USB Flash Drives See more
Country of Origin	USA
Customer Reviews	4.5 out of 5 stars 11,948 Reviews
Data Transfer Rate	5 Gigabytes Per Second
Enclosure Material	Plastic
Global Trade Identification Number	00819921011749
Hardware Interface	USB 3.0
Item Weight Unit of Measure	1.5 Ounces
Manufacturer	Sabrent
Manufacturer Part Number	HB-UMP3
Model Number	HB-UMP3
Number of Ports	4
Product Features	Play, Plug
Special Feature	Play, Plug
Total USB Ports	4
UPC	819921011749

Reviews

P**.

Fantástico, de verdad

Todo lo que he comprado de la marca Sabrent me ha dejado holgadamente satisfecha. Desde la presentación del embalaje hasta la calidad de la terminación y componentes, son productos «en serio». Este hub ha resuelto una necesidad de comunicación de dos discos USB sobre un router usado como server, que solo admitía un puerto USB de salida. Intenté conectar dos discos de 5T con un hub común, pero no levantaban por falta de potencia. Este hub potenciado permite montar hasta 4 discos USB en la única entrada USB del router, con asombrosa sencillez. Solo enchufar y habilitar cada puerto con su respectivo botón de carga (cada puerto tiene un interruptor individual, algo estupendo). El router levantó los discos al instante sin ningún problema de conectividad, y los discos fueron identificados por la PC como unidades de red individuales, con excelente velocidad de acceso desde otros dispositivos. Es muy pequeño de tamaño, y no ocupa lugar en una mínima mesa o balda donde está el router. Es cierto que el cable es corto, pero para el uso que yo le doy, que es tenerlo al lado físicamente del router, sobra longitud. Se ve de buena calidad y muy buen desempeño. Estoy muy satisfecha y lo recomiendo para cualquier necesidad de hub USB. Vale cada céntimo del precio.

15.11.2024

B**C

Hub alimenté qui offre 4 port USB-A 3.2 à 5Gbps chacun

Ce hub 4 ports USB-A est un vrai produit de qualité : il maintient la vitesse de l'USB 3.2 (5 Gbs) sur les 4 ports, ils sont munis chacun d'un interrupteur et comme le hub a sa propre alimentation (chargeur fourni) il peut fonctionner avec des appareils qui ne sont pas capables de fournir assez d'alimentation pour les périphériques USB, ce qui était mon cas. Aucun Hub USB-A pas cher ne fonctionnait avec mon appareil, celui-ci a fonctionné du premier coup !

25.07.2026

G**E

Eigene Stromversorgung (wichtig bei Raspberry PI), jedes Gerät einzeln schaltbar, hochwertig.

Ich habe 3 SATA Platten mit USB zu SATA Adaptern an einen USB Hub angeschlossen. Leider genügte die Stromversorgung eines normalen Raspberry PI 4 (und 5) für dieses Szenario nur für genau eine Platte. Sobald man zwei anschließt, fällt die Stromversorgung des USB Adapters aus. Die Platten selbst werden über eine eigene Stromversorgung versorgt. Mit diesem Adapter funktionieren alle 3 problemlos, da er eine externe Stromversorgung für die USB Ports hat. Zudem kann man jedes Gerät einzeln ein/ausschalten, wobei die Schalter in ihrer Postion verbleiben (es sind keine Tastschalter).

12.04.2026

Z**Z

Działa

Wygląda na dobrze wykonany produkt.

12.08.2024

M**N

Excellent value for money

Given the price this is a excellent piece of USB-hub. I have it as a hub for a Raspberry PI4 which is running Zwave dongle and it works as planned. I also have other devices connected to it.

3.09.2022

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323.38 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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5 days ago

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The product quality is outstanding. Exactly what I needed for my work.

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