Ugreen CM219 4-Port USB 3.0 Hub (UG- 25851)

Name: Ugreen CM219 4-Port USB 3.0 Hub (UG- 25851)
Brand: Ugreen
SKU: 24096
Availability: InStock

Ugreen CM219 (UG-25851) delivers efficient USB port multiplication for modern computing environments. This compact hub transforms a single USB connection into four independent USB 3.0 ports. The device supports data transfer speeds up to 5 Gbps, enabling rapid file transfers and simultaneous peripheral operation.

SuperSpeed USB 3.0 Performance

The CM219 hub leverages USB 3.0 technology to achieve theoretical transfer rates of 5 Gbps. This bandwidth represents a tenfold improvement over USB 2.0 specifications. Users can transfer a 10 GB file in approximately 16.4 seconds. The hub maintains backward compatibility with USB 2.0 and USB 1.1 devices, ensuring broad peripheral support across different generations of USB technology.

Plug-and-Play Architecture

The Ugreen UG-25851 requires no driver installation or software configuration. The device operates through native USB protocol support across Windows, macOS, Linux, and Chrome OS platforms. LED indicators provide visual confirmation of connection status and power delivery. Users simply connect the hub to their host device and begin using connected peripherals immediately.

Multi-Device Connectivity

This hub features four USB-A 3.0 female ports for peripheral connections. Each port delivers stable power and data transmission for devices such as external storage drives, keyboards, mice, webcams, printers, and USB flash drives. The CM219 supports external hard drives with capacities up to 12 TB, accommodating large-capacity storage solutions without performance degradation.

Additionally, the hub includes a micro USB power port for supplemental power delivery. This auxiliary power input ensures adequate power supply for demanding peripherals that require more current than standard USB bus power provides.

Physical Design and Cable Configuration

The Ugreen CM219 presents a compact form factor measuring 104 x 30 x 10 mm. The hub weighs approximately 2.08 ounces including packaging materials. The ABS case features metallic paint finishing for durability and aesthetic appeal.

Different versions of the UG-25851 ship with varying cable lengths. Standard configurations include a 15 cm integrated cable, while extended versions provide 1-meter cables for greater placement flexibility. The built-in cable design eliminates the need for separate connection cables and reduces desktop clutter.

Thermal Management

The CM219 hub maintains operational stability during sustained use. User reports indicate the device does not generate excessive heat even when all four ports operate simultaneously with connected devices. The thermal design ensures consistent performance without throttling or connection interruptions due to temperature-related issues.

Gaming Console Compatibility

Beyond traditional computer connectivity, the Ugreen UG-25851 functions with gaming platforms including Xbox and PlayStation 5 consoles. Gamers can connect multiple peripherals such as gaming keyboards, mice, headsets, and external storage drives to expand their console’s peripheral support. This compatibility enables enhanced gaming setups without occupying multiple native console USB ports.

OTG Support for Mobile Devices

The hub provides On-The-Go functionality for compatible Android smartphones and tablets equipped with USB-C OTG support. Devices including Samsung Galaxy S10/S9/S8, Note10/Note9/Note8, LG V50/V40/V30, and Huawei Mate 20 can utilize the CM219 to expand their peripheral connectivity options. Users can connect USB storage devices, keyboards, and other accessories directly to their mobile devices.

Signal Stability and Reliability

The hub maintains consistent data transmission quality across all four ports. Signal stability remains constant even during high-bandwidth operations such as large file transfers or simultaneous peripheral use. The reinforced cable construction contributes to long-term durability and connection reliability. The Ugreen UG-25851 delivers dependable performance for wireless device connections and wired peripheral management.

Compatibility Across Computing Platforms

The CM219 hub operates with diverse computing devices and operating systems. Compatible devices include:

Apple devices: MacBook Pro (2016-2022 models), MacBook Air (2018-2019), iMac (2017-2019), iMac Pro, Mac Mini 2018, and MacBook models with Thunderbolt 3
Windows laptops and desktops: Dell XPS 13/15/12 9250, Precision 5510, Inspiron 15 7000, Latitude 7285; HP Spectre 13, Spectre X360, ENVY 13, ENVY X360, EliteBook Folio G1; Lenovo Yoga 920/910/720, ThinkPad X1, Ideapad Air 12, Miix 630
Chromebooks: Samsung Chromebook Pro, Chromebook Plus
Tablets: Samsung Galaxy Tab Pro S 12″, Galaxy Tab S4/S5e/S6, Microsoft Surface Pro X, Surface Go, Surface Pro 7
2-in-1 devices: Microsoft Surface Book 2, Surface Laptop 3

Ideal User Profiles

Mobile Professionals and Business Travelers

Benefit from the compact 104 x 30 x 10 mm form factor that fits easily in laptop bags
The 2.08-ounce weight adds minimal bulk to travel gear
5 Gbps transfer speeds enable rapid file synchronization when connecting external storage during travel
Plug-and-play functionality eliminates setup time in different work locations

Content Creators and Media Professionals

The 12 TB external drive support capacity accommodates high-capacity storage for video projects and photo libraries
5 Gbps bandwidth transfers a 10 GB file in 16.4 seconds, reducing wait times during backup operations
Four simultaneous port connections allow concurrent use of storage drives, input devices, and peripherals
Gaming console compatibility supports content creation workflows involving console capture and streaming

System Administrators and IT Professionals

Broad OS compatibility (Windows, macOS, Linux, Chrome OS) supports diverse IT environments
Backward compatibility with USB 2.0 and 1.1 ensures support for legacy peripherals
LED indicators enable quick visual assessment of connection status across all ports
Micro USB power port provides supplemental power for devices requiring higher current draw

Remote Workers with Limited USB Ports

Expands single USB port into four independent connections for mice, keyboards, webcams, and external storage
No-driver installation requirement simplifies home office setup
Stable thermal performance during extended daily use prevents connection interruptions during video calls or long work sessions

Gamers Seeking Peripheral Expansion

Xbox and PlayStation 5 compatibility enables connection of multiple gaming peripherals
Four ports accommodate gaming keyboard, mouse, headset, and external storage simultaneously
5 Gbps data rates support fast game installation and loading from external drives
Compact design minimizes space consumption in entertainment center setups

Input Interface

Connector Type: USB-A 3.0 Male
Alternate Version: USB-C Male (depending on model variant)
Cable Length: 15 cm (standard) or 1 meter (extended version)
Cable Construction: Reinforced design with integrated connection

Output Interfaces

Number of Ports: 4 USB-A 3.0 Female ports
Individual Port Speed: Up to 5 Gbps per port
Backward Compatibility: USB 2.0 (480 Mbps), USB 1.1, USB 1.0

Power Specifications

Primary Power Source: USB bus power from host device
Auxiliary Power Input: Micro USB port for external 5V power adapter
Power Delivery: Supports power-hungry peripherals including 2.5″ and 3.5″ external hard drives

Data Transfer Performance

USB 3.0 Standard Speed: 5 Gbps (theoretical maximum)
Speed Comparison: 10x faster than USB 2.0 (480 Mbps)
Transfer Example: 10 GB file transfers in approximately 16.4 seconds
External Storage Support: Hard drives up to 12 TB capacity

Physical Dimensions

Body Size: 104 mm (L) x 30 mm (W) x 10 mm (H)
Weight: 59 grams (2.08 ounces) including packaging
Overall Dimensions with Packaging: 157 mm x 91 mm x 18 mm

Construction Materials

Housing Material: ABS plastic
Surface Finish: Metallic paint coating
Cable Reinforcement: Enhanced cable strain relief at connection point

Operating Features

Driver Requirement: None (plug-and-play operation)
LED Indicators: Connection status monitoring for each port
Hot-Swap Support: Connect and disconnect devices without system restart
Simultaneous Device Support: All four ports operate concurrently

Platform Compatibility

Operating Systems: Windows, macOS, Linux, Chrome OS
Gaming Consoles: Xbox, PlayStation 5
Mobile Devices: Android smartphones and tablets with USB-C OTG support (Samsung Galaxy S10/S9/S8, Note10/Note9/Note8, LG V50/V40/V30, Huawei Mate 20)