Does the ac adapter work in japan (100v)?

AC adapter works with 100v, grounded outlet.

Can you connect another usb hub to the usb ports?

Your question probably could be simply answered yes. But the real answer is why and what will happen. You plug this into a single 3.0/1 USB port to connect to the computer. It can only pass so much data and it cannot double that data or anything else. So attaching another Sipolar hub might work, but you will not get the result you expect. Better to plug it into ANOTHER 3.0/1 USB on the computer. Daisy chaining them really is not a great idea at all. Not even for charging lots of mobile phones are other computer batteries. But on their own USB ports on the computer will give you what you want, I think. Somewhere in my foggy memory I think most computers can support 20 usb ports without a problem. However, once again, remember that each port on its own only supports so much. If you are trying to put a bunch of ASIC USB miners together, it might just work on a daisy chain. But you also have to remember power. The unit is 12v 10 amp, and if you are pushing those miners you will have to give them more power. I think they want 2.5amp so you need to get a more powerful power supply to jam 10 in each one. Hope that helped.

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10 Port USB 3.0 Hub - Super Speed USB Splitter - 2.1A Charging for 10 Mobile/Ipad - USB 3 Hubs with 12V 10A Power Adapter - Cooling Fan - Mouting Brackets - LED Indication - Metal Casing | 10 USB 3.0 ports with 120W power, up to 2.1A per port and 5Gbps data for repair, testing and multi-device workstations.

10 Port USB 3.0 Hub - Super Speed USB Splitter - 2.1A Charging for 10 Mobile/Ipad - USB 3 Hubs with 12V 10A Power Adapter - Cooling Fan - Mouting Brackets - LED Indication - Metal Casing | 10 USB 3.0 ports with 120W power, up to 2.1A per port and 5Gbps data for repair, testing and multi-device workstations.

Product ID: 162500382

Details

Brand
sipolar
Color
black
Compatible Devices
Card Readers
Hardware Interface
USB
Special Feature
Powered

⚡2.1A fast charging per port

🔌10 USB 3.0 ports for ultimate expansion

🚀5Gbps super-speed data transfer

$291.11

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔗 Power Up Your Productivity with Speed & Style!

PLUG PLAY DOMINATE - Seamless compatibility across Windows, Mac, Linux—no drivers needed, just instant productivity.
SLEEK DURABLE DESIGN - Premium aluminum alloy casing with LED indicators and mounting brackets for a polished, professional setup.
MAXIMIZE YOUR WORKSPACE - Expand your connectivity with 10 high-speed USB 3.0 ports—perfect for multitasking pros.
STAY COOL UNDER PRESSURE - Built-in cooling fan and overload protection keep your devices safe during heavy use.
CHARGE SYNC AT LIGHTNING SPEED - Deliver up to 2.1A per port and transfer data at 5Gbps—HD movies in seconds, no lag.

The Sipolar 10 Port USB 3.0 Hub delivers blazing 5Gbps data transfer and 2.1A charging per port, powered by a robust 12V 10A adapter. Its metal casing, cooling fan, and mounting brackets ensure durability and safe operation, making it the ultimate multi-device workstation hub compatible with all major OS platforms.

Specifications

ASIN	B07Y9DJ84Q
Additional Features	Powered
Best Sellers Rank	#954 in USB Hubs
Brand	sipolar
Color	black
Compatible Devices	Card Readers, Desktops, Laptops, Printers
Customer Reviews	4.4 4.4 out of 5 stars (33)
Data Transfer Rate	5 gigabits_per_second
Enclosure Material	Metal
Hardware Interface	USB
Manufacturer	Shenzhen Lpsen Technology Co., Ltd.
Mfr Part Number	DH112257
Model Number	A-423
Number of Ports	10
Operating System	Linux, Windows 10, Windows 8, Windows Vista
Total Usb Ports	10

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