Baseus Square Round 4-in-1 USB Hub, (USB-A to USB 3.0 + 3×USB 2.0) - CAHUB-AY01
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Baseus Square Round 4-in-1 USB Hub, (USB-A to USB 3.0 + 3×USB 2.0) - CAHUB-AY01
Baseus Square Round Series 4-in-1 USB Hub Adapter with USB 3.0, 3× USB 2.0, 5Gbps High-Speed Data Transfer & Micro USB Power Port – CAHUB-AY01
Main Specifications
- Product Name: Baseus Square Round Series 4-in-1 USB Hub Adapter
- Model: CAHUB-AY01
- Product Type: USB Hub
- Material: ABS + TPE
- Input Interface: USB-A
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Output Ports:
- 1 × USB 3.0
- 3 × USB 2.0
- Additional Power Input: Micro USB (5V)
- USB 3.0 Transfer Speed: Up to 5Gbps
- USB 2.0 Transfer Speed: Up to 480Mbps
- External HDD Support: Up to 4TB (with external Micro USB power when required)
- Cable Length: 1m
- Indicator Light: Warm White LED
- Installation: Plug & Play
- Color: Black
- Features: High-Speed Data Transfer, 4-Port Expansion, External Power Support, Compact Design
Top Features
- Expands one USB-A port into 4 USB ports for connecting multiple devices simultaneously.
- One USB 3.0 port supports data transfer speeds up to 5Gbps.
- Three USB 2.0 ports are ideal for keyboards, mice, printers and other peripherals.
- Additional Micro USB power input provides stable power for high-capacity external hard drives.
- Supports external hard drives up to 4TB with supplemental power.
- Warm white LED indicator displays working status.
- Durable ABS housing with flexible TPE cable for long-lasting use.
- Plug-and-play design requires no driver installation.









The Baseus Square Round Series 4-in-1 USB Hub Adapter (CAHUB-AY01) is a practical solution for expanding the USB connectivity of your desktop or laptop. It converts a single USB-A port into one USB 3.0 port and three USB 2.0 ports, allowing you to connect multiple accessories simultaneously. The USB 3.0 port delivers transfer speeds of up to 5Gbps, while the built-in Micro USB power input provides additional power for high-capacity external hard drives up to 4TB. Featuring a compact design, 1-meter cable and plug-and-play operation, it's ideal for home, office and travel.
Compatible Devices
Compatible with Windows PCs, MacBook, iMac, Mac mini, Linux computers, desktop PCs, laptops, USB flash drives, external hard drives, keyboards, mice, printers, USB fans, USB lights and other USB-A devices.
Last updated: November 2026
At a glance
- Change of mind: within 7 days of delivery, unopened items only.
- Wrong or damaged items: report within 7 days of delivery. We replace them.
- Item stops working later: covered by our Warranty Policy (1 month to 1 year, see the product page).
- Orders cannot be cancelled after dispatch.
Not sure which section applies?
- Item is wrong, damaged or faulty when you open the parcel: report within 7 days of delivery (Section 2 or 3).
- Item works at first and stops working later: this is a warranty claim (Section 4 and our Warranty Policy).
- You simply changed your mind: Section 1 (within 7 days, unopened).
1. Change of mind
You can ask for an exchange or a refund if you change your mind.
- Contact us within 7 days of delivery.
- The product must be unused and the seal must be unopened.
- We prefer an exchange. If you want a refund instead, we can do that too.
- You pay the return shipping.
- Sale items cannot be returned for change of mind.
2. Wrong item received
If we sent you the wrong item:
- Tell us within 7 days of delivery.
- An unboxing video is a must. Start recording before you open the parcel, and show the parcel, the seals and the product clearly.
- We will pick it up from you for free.
- We will send the correct item once we receive the wrong one.
3. Damaged item received
- Tell us within 7 days of delivery.
- An unboxing video is a must. Start recording before you open the parcel, and show the parcel, the seals and the product clearly.
- We cannot accept a damage claim without the video.
- If your claim is approved, we will replace the item.
4. Item stops working later (warranty)
- If your item stops working during its warranty period, we will replace it.
- The warranty period starts from the delivery date.
- You will need the original brand box, your order number, and photos or a video of the issue.
- If the same product is not available, we will offer a similar product. If you do not accept it, we will refund you.
- You pay the return shipping for warranty claims.
- Sale items are covered by warranty too.
- See our Warranty Policy for warranty periods and the full claim process.
5. Return conditions
For change of mind and wrong item returns, the product must be:
- Unused and unopened (resellable)
- In its original box
- Returned with all accessories
- Shared with your order number
6. How to request
- Message us on WhatsApp or email with your order number and a photo or video.
- We check your request and confirm.
- Send the item back (for wrong items, we arrange the pickup).
- We inspect the item within 2-3 working days after receiving it.
- We send your replacement or refund.
7. Refunds
- Refunds are sent by bank transfer, Easypaisa or JazzCash. This applies to both COD and advance-paid orders.
- Refunds are sent within 5-7 working days after approval.
- If the mistake is ours and proven (for example, a wrong item), we also refund the delivery charges.
- If we cannot replace an item, we will offer a similar item or a refund.
8. Cancellation
- You can cancel an order before it is dispatched. Contact us as soon as possible.
- Once an order is dispatched, it cannot be cancelled.
9. Contact us
- WhatsApp: +92 330 6887766
- Email: techbot.pk@gmail.com