UGREEN CM688 (35021) USB 3.2 Gen 1 4-Port USB-A Hub

UGREEN CM688 (35021) 4-Port USB 3.2 Hub Price in Bangladesh

Top Highlights

• Four USB-A Expansion PortsConnect up to four compatible USB peripherals through one host port.
• USB 3.2 Gen 1 PerformanceSupports interface speeds up to 5Gbps for suitable storage devices.
• 15cm Integrated CableConvenient short connection for compact desk arrangements.
• Plug-and-Play OperationUse standard USB accessories without installing a dedicated hub driver.

About the UGREEN CM688 (35021)

The UGREEN CM688 is a USB data hub developed for users who need more USB-A connections on their laptop or desktop computer.

Its USB-A host connector provides access to four USB-A output ports, reducing the need to disconnect accessories whenever another device is required.

USB 3.2 Gen 1 technology supports signaling speeds up to 5Gbps when connected to a compatible USB host and suitable peripherals.

The hub can be used with everyday accessories including USB flash drives, external storage, keyboards, mice and USB receivers.

Its 0.15m integrated cable helps keep the hub close to the computer, making it particularly useful for laptops and compact workspaces.

Standard USB hub operation is plug and play on compatible Windows, macOS and Linux computers, although individual connected devices may require their own drivers.

The four ports share one upstream connection, so simultaneous data transfers and connected-device power requirements should be considered.

The CM688 is intended for USB connectivity rather than HDMI video output, wired Ethernet or USB-C laptop Power Delivery charging.

Design & Performance

Four-Port USB-A Expansion for Everyday Computer Accessories

The UGREEN CM688 (35021) turns one available USB-A connection into four convenient USB-A ports.

This is useful for laptops and desktop computers that have fewer accessible USB ports than the number of accessories being used.

Users can connect a keyboard, mouse, USB flash drive and another supported peripheral without repeatedly changing connections.

The hub also helps make USB ports easier to reach when a desktop computer is positioned under a desk or away from the work surface.

Its standard USB-A output design is suitable for many commonly used computer accessories.

Each connected device remains subject to its own operating-system compatibility and power requirements.

The CM688 focuses on USB port expansion without adding unnecessary video or networking functions.

USB 3.2 Gen 1 Data Transfer Speeds Up to 5Gbps

The UGREEN CM688 supports USB 3.2 Gen 1 connectivity with a maximum interface signaling rate of 5Gbps.

This USB standard is also commonly identified as USB 3.0 or USB 3.1 Gen 1.

Its higher bandwidth compared with USB 2.0 can be useful when transferring files through compatible external storage devices.

Users can attach suitable USB flash drives, portable storage and other USB peripherals that benefit from a faster host connection.

The advertised 5Gbps speed represents the maximum USB interface rate rather than guaranteed file-copy performance.

Actual speeds depend on the computer, storage device, file sizes and the number of devices transferring data simultaneously.

All four ports share the upstream USB connection, so the hub does not provide a separate dedicated 5Gbps connection to each device at the same time.

Compact Design with a Short 0.15m Integrated Cable

The CM688 uses a compact hub design suitable for everyday laptop and desktop setups.

Its integrated cable measures approximately 0.15m, or 15cm.

This short cable helps position the hub near the computer without leaving a large amount of excess cable on the desk.

The design is particularly practical for laptops where the USB port is already close to the work area.

Users can keep several USB accessories connected through one small expansion device.

The hub is also convenient to carry alongside a laptop when moving between home, office and study environments.

For desktop computers with USB ports located far from the desk surface, users should consider whether a 15cm cable provides sufficient reach.

Plug-and-Play Connectivity Across Common Computer Systems

The UGREEN CM688 is designed for straightforward USB hub operation on compatible computers.

It can be used with supported Windows, macOS and Linux systems without installing a dedicated driver for the hub itself.

Users connect the integrated USB-A cable to the computer and then attach their USB peripherals to the available output ports.

This makes the hub suitable for general office work, study environments and everyday home computing.

Common USB accessories such as keyboards, mice and storage drives can be connected according to their individual compatibility requirements.

Some specialized accessories may still require their own drivers or software supplied by the device manufacturer.

To achieve USB 3.2 Gen 1 speeds, the computer's host connection and the attached device must both support the necessary data rate.

Practical Connectivity for Storage and Office Peripherals

The four USB-A ports make the CM688 useful for combining storage and everyday accessories in one location.

For example, an office workstation can keep a USB keyboard and mouse connected while leaving additional ports available for removable storage.

Students can use the hub for transferring documents from flash drives and connecting supported USB accessories.

Desktop users may benefit from having more accessible USB ports near their keyboard and monitor.

The hub can also help reduce repeated plugging and unplugging of USB connectors on the computer itself.

Connected storage devices should be safely ejected when required by the operating system before removal.

The hub's main purpose is convenient USB data expansion rather than replacing a multifunction docking station.

Shared USB Bandwidth and Connected-Device Power Considerations

The UGREEN CM688 connects several USB devices through one computer USB-A port.

As a result, connected devices share the available upstream USB data bandwidth.

When multiple high-speed drives transfer files simultaneously, individual transfer speeds may be lower than when only one drive is active.

Connected peripherals also require electrical power, and the available power depends on the host connection and the hub's supported power arrangement.

Ordinary keyboards, mice and USB receivers generally have lower power requirements than some portable hard drives and other demanding accessories.

Users should check the requirements of power-intensive devices before connecting several of them simultaneously.

The CM688 should not be described as a USB-C Power Delivery laptop charger or a dedicated high-wattage charging station.

For everyday USB expansion, its combination of four ports, 5Gbps interface support and compact cable design provides a practical workstation accessory.

Who It's For

The UGREEN CM688 (35021) is suitable for laptop users who need additional USB-A ports for keyboards, mice, storage and other peripherals.

Office professionals can connect multiple accessories without repeatedly disconnecting devices from their computer.

Students can use the hub for flash drives and common USB accessories during study or project work.

Desktop users can benefit from easier access to USB ports when the computer case is positioned away from the work area.

Home users who need a simple USB port expander can use the CM688 without purchasing a larger multifunction dock.

Why Buy From IT Source?

IT Source offers UGREEN USB hubs, adapters and computer connectivity accessories for customers in Bangladesh.

Customers can check the latest UGREEN CM688 (35021) price and availability before ordering.

Before purchasing, confirm that the computer has a compatible USB-A port and that connected devices meet the available USB power requirements.

Contact IT Source Bangladesh for current product information and ordering assistance.

Frequently Asked Questions