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Item #:
8208709
Vantec USB 3.0 Gigabit Ethernet Adapter (CB-U300GNA)
Item #:
8208709
GBP 35
Price Details
Price
GBP 35
Excluding Shipping, VAT & Custom charges ( Shipping, VAT and custom charges will be calculated on checkout.
If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )
In stock
Imported from USA store
QTY:
Only 1 item left in stock.
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Friday, July 24
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Vantec USB to Serial Adapter provides a simple and reliable solution to connect a serial device to the USB port on your PC or Mac.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
7.1 Surround Sound
Experience immersive audio quality with 7.1 channel surround sound, providing rich, dynamic soundscapes ideal for gaming and movie experiences.
Plug-and-Play Design
Easily connect and use with no extra drivers needed, making it convenient for users seeking hassle-free installation on any computer.
Compact and Portable
Its sleek, portable design allows for easy transport, making it an ideal solution for audio enhancement while traveling or on-the-go.
Product Details
- Dual Gigabit Ethernet ports through a single USB connection
- Supports crossover detection, auto-correction, polarity correction, adaptive equalization, cross-talk, echo cancellation, and timing recovery
- Compliant with USB 3.0 Specification, Revision 1.0
- Supports jumbo frame up to 9K bytes
- USB Cable Type A & 2 x RJ45 connection
- Compatible with Windows XP, 7, 8, 8.1 / Mac OS X 10.8 or greater / Latest Linux kernel
| Hardware Interface | USB 3.0 |
| Compatible Devices | Laptop |
| Data Link Protocol | Gigabit Ethernet, IEEE 802.3 |
| Data Transfer Rate | 1000 Megabits Per Second |
| Compatible Operating System Family | MacOS |
| Minimum Required Operating System Version | Mac OS 10.12 Sierra |
| Item Dimensions L x W x H | 2.4"L x 1.22"W x 0.67"H (6.1 x 3.1 x 1.7 cm) |
| Item Weight | 0.1 Pounds (50 grams) |
| Color | Black |
| Brand | Vantec |
| UPC | 132018152300 863189855706 012302291192 844767014920 |
| Global Trade Identification Number | 00844767014920 |
| Manufacturer | Vantec USA |
| Mfr Part Number | CB-U300GNA |
| Model Number | CB-U300GNA |
| Unit Count | 1.0 Count |
| Built-In Media | USB 3.0 Gigabit Ethernet Adapter, Installation Guide, Driver CD |
| Product Dimensions (L x W x H) | 2.4"L x 1.22"W x 0.67"H (6.1 x 3.1 x 1.7 cm) |
What's in the box
USB 3.0 Gigabit Ethernet Adapter, Installation Guide, Driver CD
Who Should Buy?
-
Gamers
Provides immersive 7.1 surround sound, enhancing gaming experiences with realistic audio during intense gaming sessions.
-
Music Producers
Perfect for those needing high-quality audio output and input, facilitating better audio mixing and recording capabilities.
-
Laptop Users
Ideal for users with laptops lacking audio ports, offering an easy USB connection for superior audio playback.
-
Professional Studios
May not meet the high fidelity requirements of professional audio studios that demand premium soundcards.
-
Casual Users
Individuals not concerned with audio quality may find this product unnecessary for simple listening tasks.
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Mobile Users
Not practical for those frequently on the go who prefer compact solutions without external adapters.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the Vantec USB 3.0 to Dual Gigabit Ethernet Network Adapter?
Answer: The Vantec USB 3.0 to Dual Gigabit Ethernet Network Adapter CB-U320GNA is a device that allows you to connect two Gigabit Ethernet ports to your computer via a single USB 3.0 port. It enables high-speed internet access, making it perfect for users needing reliable network connections for tasks such as gaming, video streaming, and file transfers. By leveraging USB 3.0, this adapter supports faster data rates, enhancing your network experience compared to older USB standards. -
Question:
How does the dual-port functionality benefit users?
Answer: The dual-port functionality allows users to connect to two separate networks simultaneously or aggregate bandwidth from both ports for improved performance. This is particularly useful in environments where network reliability is crucial, such as corporate offices or during high-demand tasks. For instance, a gamer might use one connection for their gaming console and the other for a streaming device, ensuring optimal performance without interruption. -
Question:
What devices are compatible with the Vantec USB 3.0 to Dual Gigabit Ethernet Adapter?
Answer: The Vantec adapter is compatible with a wide range of devices, including Windows and macOS computers. It also works with various operating systems that support USB connectivity. This versatility makes it a great choice for professionals who might switch between different devices or platforms. Users with laptops that lack Ethernet ports can particularly benefit, gaining a reliable wired connection for better performance. -
Question:
Is the Vantec USB 3.0 to Dual Gigabit Ethernet Network Adapter plug-and-play?
Answer: Yes, the Vantec USB 3.0 to Dual Gigabit Ethernet Network Adapter is designed to be plug-and-play, meaning that it can be easily installed without the need for additional drivers or software in most operating systems. This allows users to quickly get connected to their network without dealing with complicated setup procedures. Simply connecting the adapter to a USB port will ensure immediate access to high-speed internet. -
Question:
What are the speed capabilities of the Vantec USB 3.0 adapter?
Answer: The Vantec USB 3.0 to Dual Gigabit Ethernet Network Adapter is capable of supporting speeds up to 1000 Mbps per port, taking full advantage of your internet connection. This is essential for users who stream videos, play online games, or transfer large files. By utilizing both Gigabit ports, you can ensure that your data transfer rates remain consistently high, even under heavy network loads. -
Question:
Can I use this adapter with older USB versions?
Answer: While the Vantec adapter is optimized for USB 3.0, it is backward compatible with USB 2.0 ports. However, when used with USB 2.0, the speed will be limited to USB 2.0's maximum throughput of 480 Mbps. This backward compatibility ensures flexibility, but for optimal performance, connecting it to a USB 3.0 port is recommended, particularly for demanding applications like HD video streaming. -
Question:
What types of applications benefit from using this network adapter?
Answer: Applications that require stable and fast internet connections, such as online gaming, streaming videos, or large file downloads, can greatly benefit from the Vantec network adapter. Additionally, businesses and remote workers who depend on uninterrupted connections for video conferencing and cloud applications will find this adapter particularly useful. The ability to connect to dual networks can also provide redundancy in case one network fails. -
Question:
Does this adapter come with any additional features?
Answer: The Vantec USB 3.0 to Dual Gigabit Ethernet Adapter features advanced functionalities, including support for full-duplex operation and VLAN tagging, which can enhance network performance and management. It also includes LED indicators to easily monitor connection status and activity, allowing users to troubleshoot network issues quickly. These features make it an ideal choice for both personal and professional use. -
Question:
What cable specifications do I need for optimal performance?
Answer: For optimal performance with the Vantec USB 3.0 to Dual Gigabit Ethernet Network Adapter, it is recommended to use Fiber or CAT5e/CAT6 Ethernet cables. These cables ensure that you are fully utilizing the Gigabit speeds offered by the adapter. Poor quality or damaged cables can lead to reduced speeds or connectivity issues, so investing in quality cables will enhance your overall network experience. -
Question:
Where can I buy the Vantec USB 3.0 to Dual Gigabit Ethernet Network Adapter in UK?
Answer: You can buy the Vantec USB 3.0 to Dual Gigabit Ethernet Network Adapter CB-U320GNA from Ubuy. They provide a convenient online shopping platform that often features a variety of electronic products, making it easy to purchase the adapter and have it delivered to your location in UK.
Vantec USB Network Adapters CB-U300GNA Editorial Review
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Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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Youcef
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“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
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Leila
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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GBP 35
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Friday, July 24
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 1 item left in stock.
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Connects a serial device to the USB port on your PC or Mac
- One USB Type A connector and one RS-232 DB-9 Male connector
- Compatible with any USB compliant system
- Provides 96 byte buffer for data transfer
- Bus-powered and no external power required
- Compatible with Windows 98/ME/2000/XP/Vista/7
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