Acasis USB4/Thunderbolt 4-3 to 10GbE Adapter – High-Speed Ethernet

ACASIS 10GbE USB4 Ethernet Adapter

Acasis ACASIS 10GbE USB4/ Thunderbolt 4,3 Ethernet Adapter delivers a fast, stable wired connection for laptops with USB4/USB4 v2 ports, making large file transfers, video editing, live streaming and competitive gaming smoother and more reliable.

This compact, bus-powered 10GbE NIC converts a 40Gbps USB4 host connection to a RJ45 10Gbps Ethernet port while remaining backwards compatible with lower Base‑T speeds (5G/2.5G/1G/100M/10M). Plug-and-play support on macOS and Linux gets you online quickly; Windows users can install the vendor driver to enable full functionality. The slim aluminum design fits in a laptop bag and brings dedicated high-throughput networking without an internal upgrade.

Features and Benefits

• 40Gbps USB-C/USB4 host interface converting to RJ45 10Gbps Ethernet (10 Gbps performance).
• Fully backward compatible with 5G/2.5G/1000M/100M/10Mbps Base‑T networks.
• Bus-powered design — no external power supply required.
• Plug-and-play on macOS and Linux; Windows requires vendor driver. Download Here
• Model NT0201 — compact aluminum body suitable for portable use.
• Only Works with USB4 v2 , USB4 and Thunderbolt 4 ports

Includes
Acasis Ethernet adapter
USB4 cable

Product Q&A

• Q: Which host ports are required to use this adapter?
  A: The adapter requires a USB4 or USB4 v2 host port (40Gbps-capable USB-C). The vendor page states "Only Works with USB4 v2 or USB4 ports."
• Q: Do I need drivers to use this adapter?
  A: Plug-and-play is supported on macOS and Linux. Windows requires installation of the vendor driver.
• Q: What network speeds does it support?
  A: It supports 10 Gbps Ethernet and is fully backward compatible with 5G/2.5G/1G/100M/10M Base‑T networks.
• Q: Does the adapter need an external power supply?
  A: No — the device is bus-powered from the host USB4 port.
• Q: Is this adapter compatible with Thunderbolt 3 or non-USB4 USB-C ports?
  A: The vendor explicitly states it only works with USB4 v2 or USB4 ports. It should not be expected to work on USB-C ports that do not implement USB4; please verify your laptop's port specifications before purchase.

Specification

• Vendor / Product: Acasis ACASIS 10GbE USB4 to RJ45 Adapter
• Model / SKU: NT0201
• Host Interface: (USB4 / USB4 v2, 40Gbps)
• Network Interface: RJ45 10GbE (10 Gbps)
• Backward Compatibility: 5G / 2.5G / 1000M / 100M / 10Mbps Base‑T
• Power: Bus-powered (no external adapter required)
• Color: Silver
• Warranty: 1 year from date of delivery
• Plug & Play: macOS / Linux (driver required for Windows — vendor provided)

Compatibility

Device Compatibility:

• Mac: Compatible with Macs that have USB4 or USB4 v2-capable USB-C ports. Exact macOS version support is not specified on the vendor page; macOS plug-and-play is stated but vendor does not list minimum/maximum macOS versions. M series Macs compatible.
• Windows: Compatible with Windows PCs that have USB4 or USB4 v2-capable USB-C ports, but a vendor driver is required for Windows. Exact Windows version support is not specified on the vendor page.
• Other OS (Linux): Vendor states Plug-and-Play on Linux. Exact distributions or kernel version support are not specified on the vendor page.

Mac: Plug-and-play on macOS per vendor; exact macOS version numbers not provided by vendor.

Windows: Driver required — Download Here.

Other OS: Linux: Plug-and-play (no versions specified).

Interface Requirements: Host device must support USB4 or USB4 v2 (40Gbps-capable USB‑C). The vendor explicitly states "Only Works with USB4 v2 or USB4 ports." Not compatible with USB-C ports that do not support USB4. Verify your system's port specifications before purchase.

Important: 10Gbps requirements
To achieve a 10Gbps Ethernet connection, the connected router, switch or network device must have a 10GbE port, together with suitable Ethernet cabling (Cat6/Cat6a recommended). When connected to a 1GbE, 2.5GbE or 5GbE port, the adapter will operate at the highest speed supported by both devices. Internet speeds are also limited by the speed of your broadband connection. Please check that your router, switch or other connected network device supports 10GbE if you specifically require a 10Gbps connection.

Not compatible with: USB-C ports that are USB 3.x-only or that do not implement USB4; vendor page does not list other specific incompatible hardware but advises USB4/USB4 v2 requirement.

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