Lenovo 4X90X21427 USB-C to 4-Port USB-A Hub - External - 4 USB 3.0 Ports - Iron Gray
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Product Features
Technical Overview
This hub supports USB 3.0 data transfer speeds up to 5 Gbps, allowing fast file transfers and responsive peripheral performance across all four ports. The host interface is USB Type-C, which is increasingly standard on ultrabooks, tablets, and modern desktops. Each downstream port is USB 3.0 Type-A, maintaining compatibility with the vast ecosystem of existing USB peripherals.
The hub draws power directly from the host device via the USB-C connection, eliminating the need for an external power adapter in typical use. This bus-powered design keeps the setup simple and portable. Internal circuitry manages power distribution to support multiple connected devices simultaneously without overloading the host port.
Relevant factors for this section include Host Interface, Total Number of USB Ports, Number of USB 3.0 Ports. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This hub addresses the common connectivity gap in modern computing, where devices often have limited USB ports. It provides a reliable, high-speed expansion solution that enhances workstation functionality without occupying excessive desk space.
Reversible USB-C Design
The USB-C connector plugs in correctly on the first try, every time, streamlining connections and reducing wear from incorrect insertion attempts.
- Eliminates orientation guesswork
- Reduces physical stress on ports
Four-Port Expansion
Adds four USB 3.0 ports to your system, enabling simultaneous use of multiple peripherals like external drives, input devices, and adapters.
- Supports up to four devices at once
- Maintains USB 3.0 speed across all ports
Compact and Portable
With a slim profile and lightweight construction, this hub is easy to transport and fits neatly into laptop bags or desk organizers.
- Lightweight at 1.48 oz
- Sleek Iron Gray finish
Deployment / Use Cases
This hub is ideal for users who need to connect multiple USB peripherals to a device with limited built-in ports. It serves as a practical solution for expanding connectivity in office, home office, and educational environments.
Common deployment scenarios include connecting a wired mouse, keyboard, external hard drive, and USB headset to a laptop with only one or two USB-C ports. It also supports temporary setups for presentations or events where multiple USB devices must be linked to a single host. The external form factor makes it easy to reposition or share between workstations as needed.
Office Workstation Expansion
Transform a minimalist laptop into a full desktop setup by adding a wired keyboard, mouse, external monitor adapter, and USB flash drive simultaneously.
Mobile Productivity
Carry the hub with a laptop to quickly connect peripherals in meeting rooms, coworking spaces, or client sites without relying on built-in ports.
Physical Profile
The hub features a compact external design measuring 9.17 inches in length, 1.46 inches in depth, and 0.47 inches in height. Its slim form factor allows it to sit discreetly on a desk or be tucked behind a monitor. The Iron Gray color provides a neutral, professional look that blends with most hardware aesthetics. Weighing only 1.48 ounces, it adds minimal bulk to a portable kit while offering substantial connectivity expansion.
- Depth
- 1.46" (37 mm)
- Height
- 0.47" (12 mm)
- Weight
- 1.48 oz (42 g)
- Length
- 9.17" (233 mm)
Highlights
- Converts one USB-C port into four USB 3.0 Type-A ports
- Reversible USB-C connector for easy, correct insertion
- Supports data transfer speeds up to 5 Gbps
- Bus-powered design requires no external power adapter
- Compact external form factor in Iron Gray
- Plug-and-play operation for most operating systems
- Lightweight at 1.48 oz for easy portability
- Backed by a 1-year limited warranty
Specifications
| Specifications | |
|---|---|
| Manufacturer | Lenovo Group Limited |
| Manufacturer Part Number | 4X90X21427 |
| Brand Name | Lenovo |
| Product Name | USB-C to 4 Port USB-A Hub |
| Package Type | Retail |
| Product Type | USB Hub |
| Technical Information | |
| Host Interface | USB Type C |
| Interfaces/Ports | |
| Total Number of USB Ports | 4 |
| Number of USB 3.0 Ports | 4 |
| Physical Characteristics | |
| Product Color | Iron Gray |
| Form Factor | External |
| Height | 0.47" (12 mm) |
| Depth | 1.46" (37 mm) |
| Length | 9.17" (233 mm) |
| Weight (Approximate) | 1.48 oz (42 g) |
| Miscellaneous | |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | 1 Year |
FAQ
What devices are compatible with this USB-C hub?
This hub is compatible with any device featuring a USB Type-C port that supports USB 3.0 data and power delivery. This includes most modern laptops, ultrabooks, tablets, and desktops from Lenovo, Dell, HP, Apple, and other manufacturers. It works with Windows, macOS, Chrome OS, and Linux systems that have standard USB-C connectivity.
Does this hub require an external power adapter?
No, the hub is bus-powered, meaning it draws power directly from the host device via the USB-C connection. This eliminates the need for an external power adapter in typical use, keeping the setup simple and portable. It can support multiple peripherals simultaneously as long as the host provides adequate power through its USB-C port.
What is the data transfer speed of the USB 3.0 ports?
Each of the four USB 3.0 ports supports data transfer speeds up to 5 Gbps. This allows for fast file transfers to external hard drives, SSDs, and flash drives, as well as responsive performance for input devices and other peripherals. The hub maintains USB 3.0 performance across all ports when connected to a compatible host.
Can I connect a USB-C device to this hub?
This hub provides USB Type-A ports, so it does not directly accept USB-C devices. However, you can use a USB-C to USB-A adapter or cable to connect a USB-C device to one of the hub's ports. The hub is designed to expand connectivity for standard USB-A peripherals from a USB-C host port.
What is the warranty coverage for this product?
The hub comes with a 1-year limited warranty from Lenovo. This warranty covers defects in materials and workmanship under normal use. For warranty service or support, contact Lenovo directly with the manufacturer part number 4X90X21427 and proof of purchase.
Is this hub suitable for charging devices?
While the hub can provide power to connected peripherals, it is not designed for high-speed charging of smartphones or tablets. It supports low-power charging for devices like wireless mice or keyboards. For faster charging, connect charging cables directly to the host device or use a dedicated charger, as the hub prioritizes data transfer over power delivery.
| Qty | Price | Available |
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