Asustor AS-U2.5G2 USB-C 2.5GbE Ethernet Adapter
Add a Faster Wired Connection The Asustor AS-U2.5G2 adds a 2.5GbE wired connection through a USB 3.2 Gen 1 port. Its integrated USB-C cable and included USB-A adapter make it a compact way to connect a supported ASUSTOR NAS, laptop or desktop to a multi-gigabit network. An aluminium enclosure, Realtek RTL8156B controller and 33g design keep the adapter easy to carry. It is powered by USB, so there is no separate power brick to pack. The host, operating system and network equipment must support the intended connection. Highlights 2.5GBASE-T RJ-45 Ethernet with 1Gb/s and 100Mb/s fallback USB 3.2 Gen 1 Type-C connection USB-C to USB-A adapter included USB powered with an integrated cable Aluminium housing and 33g weight Key Features A Simple Wired Upgrade Add a faster wired port to a supported computer or NAS. For a 2.5Gb/s link, both ends of the connection and the intervening network must support 2.5GbE. Useful Compatibility Manufacturer support includes ASUSTOR ADM 3.5.1 or later and supported Windows, macOS and Linux systems. Compatible NAS examples include AS3104T, AS3202T, AS3204T, AS3204T v2, AS5002T, AS5004T, AS5102T, AS5104T, AS5008T, AS5010T, AS5108T, AS5110T, AS5202T, AS5304T, AS6102T, AS6104T, AS6202T, AS6204T, AS6208T, AS6210T, AS6302T, AS6404T, AS6508T, AS6510T, AS6602T, AS6604T, AS7004T, AS7008T, AS7010T, AS7110T, AS7112RDX and AS7116RDX. Check the exact host and current driver or ADM support. Use Existing Suitable Cabling The adapter supports Cat 5e or better network cabling and automatic speed negotiation. A 2.5GbE link increases available network bandwidth; disk speeds, USB bandwidth and workload still affect file transfers. Made to Travel The integrated cable and included Type-A adapter reduce the need for separate connection accessories. Ensure the triangle on the connector aligns with the USB logo on the adapter for maximum speed. Summary AS-U2.5G2 is a compact route to 2.5GbE for a supported NAS or computer. Match it with a suitable USB host, supported software and 2.5GbE network equipment to make the most of the connection. Frequently Asked Questions Is This the Second-Generation Adapter?ExpandCollapse Yes. This listing is AS-U2.5G2, also described as AS-U2.5G GEN2. It uses the RTL8156B controller and 33g aluminium design, rather than the older first-generation adapter. Is a USB-A Adapter Included?ExpandCollapse Yes. The integrated cable is USB-C, and a USB-C to USB-A adapter is included. Align the indicated connector markings when fitting it. Does It Need Its Own Power Supply?ExpandCollapse No. It is powered from the USB connection. The host USB port must provide suitable power and support the required data connection. Will It Make My Internet 2.5 Times Faster?ExpandCollapse Not automatically. It can negotiate a 2.5GbE local link with compatible equipment. Internet service speed, the router, switch, USB connection and other devices can remain limiting factors. Can I Use It with an ASUSTOR NAS?ExpandCollapse Yes, on a supported NAS with the required USB connection and ADM support. The current hardware specification states ADM 3.5.1 or later; check the exact NAS before installation. Do I Need New Ethernet Cables?ExpandCollapse Suitable Cat 5e or better cabling can support 2.5GbE. Damaged cables, poor terminations or an incompatible switch port can cause a slower negotiated link.
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Asustor AS-U2.5G2 USB-C 2.5GbE Ethernet Adapter
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Add a Faster Wired Connection
The Asustor AS-U2.5G2 adds a 2.5GbE wired connection through a USB 3.2 Gen 1 port. Its integrated USB-C cable and included USB-A adapter make it a compact way to connect a supported ASUSTOR NAS, laptop or desktop to a multi-gigabit network.
An aluminium enclosure, Realtek RTL8156B controller and 33g design keep the adapter easy to carry. It is powered by USB, so there is no separate power brick to pack. The host, operating system and network equipment must support the intended connection.
Highlights
- 2.5GBASE-T RJ-45 Ethernet with 1Gb/s and 100Mb/s fallback
- USB 3.2 Gen 1 Type-C connection
- USB-C to USB-A adapter included
- USB powered with an integrated cable
- Aluminium housing and 33g weight
Key Features
A Simple Wired Upgrade
Add a faster wired port to a supported computer or NAS. For a 2.5Gb/s link, both ends of the connection and the intervening network must support 2.5GbE.
Useful Compatibility
Manufacturer support includes ASUSTOR ADM 3.5.1 or later and supported Windows, macOS and Linux systems. Compatible NAS examples include AS3104T, AS3202T, AS3204T, AS3204T v2, AS5002T, AS5004T, AS5102T, AS5104T, AS5008T, AS5010T, AS5108T, AS5110T, AS5202T, AS5304T, AS6102T, AS6104T, AS6202T, AS6204T, AS6208T, AS6210T, AS6302T, AS6404T, AS6508T, AS6510T, AS6602T, AS6604T, AS7004T, AS7008T, AS7010T, AS7110T, AS7112RDX and AS7116RDX. Check the exact host and current driver or ADM support.
Use Existing Suitable Cabling
The adapter supports Cat 5e or better network cabling and automatic speed negotiation. A 2.5GbE link increases available network bandwidth; disk speeds, USB bandwidth and workload still affect file transfers.
Made to Travel
The integrated cable and included Type-A adapter reduce the need for separate connection accessories. Ensure the triangle on the connector aligns with the USB logo on the adapter for maximum speed.
Summary
AS-U2.5G2 is a compact route to 2.5GbE for a supported NAS or computer. Match it with a suitable USB host, supported software and 2.5GbE network equipment to make the most of the connection.
Frequently Asked Questions
Is This the Second-Generation Adapter?
Yes. This listing is AS-U2.5G2, also described as AS-U2.5G GEN2. It uses the RTL8156B controller and 33g aluminium design, rather than the older first-generation adapter.
Is a USB-A Adapter Included?
Yes. The integrated cable is USB-C, and a USB-C to USB-A adapter is included. Align the indicated connector markings when fitting it.
Does It Need Its Own Power Supply?
No. It is powered from the USB connection. The host USB port must provide suitable power and support the required data connection.
Will It Make My Internet 2.5 Times Faster?
Not automatically. It can negotiate a 2.5GbE local link with compatible equipment. Internet service speed, the router, switch, USB connection and other devices can remain limiting factors.
Can I Use It with an ASUSTOR NAS?
Yes, on a supported NAS with the required USB connection and ADM support. The current hardware specification states ADM 3.5.1 or later; check the exact NAS before installation.
Do I Need New Ethernet Cables?
Suitable Cat 5e or better cabling can support 2.5GbE. Damaged cables, poor terminations or an incompatible switch port can cause a slower negotiated link.
Mga detalye
Asustor AS-U2.5G2 USB-C 2.5GbE Ethernet Adapter
| Specification | Details |
|---|---|
| Network Connection | |
| Controller | Realtek RTL8156B |
| Ethernet port | 1 × RJ-45; 100Mb/s, 1Gb/s or 2.5Gb/s auto-negotiation |
| Network mode | Full duplex |
| Cabling | Cat 5e or better, subject to cable condition and network installation |
| USB and Power | |
| Host interface | USB 3.2 Gen 1 Type-C |
| Included adapter | USB-C to USB-A |
| Power | USB bus powered; no separate power supply |
| Host Compatibility | |
| NAS software | ASUSTOR ADM 3.5.1 or later on a supported model |
| NAS examples | AS3104T, AS3202T, AS3204T, AS3204T v2, AS5002T, AS5004T, AS5102T, AS5104T, AS5008T, AS5010T, AS5108T, AS5110T, AS5202T, AS5304T, AS6102T, AS6104T, AS6202T, AS6204T, AS6208T, AS6210T, AS6302T, AS6404T, AS6508T, AS6510T, AS6602T, AS6604T, AS7004T, AS7008T, AS7010T, AS7110T, AS7112RDX and AS7116RDX |
| Computer systems | Supported Windows, macOS and Linux versions; confirm current driver support for the exact host |
| Physical and Environmental | |
| Dimensions | 16.4H ×23.4W ×195.2D mm, manufacturer-listed overall dimensions |
| Weight | 33g |
| Housing | Aluminium |
| Operating temperature | 0–45°C |
| Storage temperature | −20–50°C |
| Relative humidity | 20–80%RH |
| Warranty | |
| Coverage | 1 year |




