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Voltarum OpenWRT buyers guide

Cudy · Released 2024

Cudy TR3000 (TR3000 v1)

OpenWrt compatibility
Fully supportedup to 25.12.6
Our recommendation
Recommended
  • Difficult installation
  • Hardware revision warning

An inexpensive travel router with a 2.5 GbE WAN port, 512 MB RAM and USB 3.0; installation takes more effort than GL.iNet's.

CPU
2-core · 1.3 GHz · ARM 64-bit
RAM / Flash
512 MB / 128 MB
Wi-Fi
Wi-Fi 6
Fastest port
2.5 GbE

Tested by us: No. Specifications and compatibility independently researched from manufacturer and OpenWrt documentation.· Last reviewed Oct 10, 2026

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Quick answers

Does it support OpenWrt?
Yes, with official images since OpenWrt 23.05.4; latest release with images: 25.12.6.
Is installation easy?
Hard. Check the device page for an intermediate Cudy firmware; otherwise open the case, connect a serial console and boot the OpenWrt initramfs over TFTP, then sysupgrade.
Is it powerful enough for WireGuard?
WireGuard suitability: Good. Benchmark not yet tested.
Does it have enough RAM and flash?
512 MB RAM, 128 MB flash. Plenty of room for VPN, SQM, ad blocking and extra packages.
Does it have 2.5 GbE?
Yes: 1× 2.5 GbE.
Would we buy it today?
Yes if you are comfortable with a harder install; otherwise the Beryl AX is worth the extra money.Opinion
What should I buy instead?
Consider GL.iNet Beryl AX. See Alternatives below.Opinion

Overview

Editorial opinion

The TR3000 is Cudy's answer to the GL.iNet Beryl AX (GL-MT3000): the same Filogic 820 platform, a 2.5 GbE WAN port and USB-C power, for less money.

The trade-off is installation: unless Cudy provides an intermediate firmware for your unit, it needs a serial console and TFTP.

OpenWrt compatibility

Factual data
Synced Oct 21, 2026
OpenWrt support
Fully supported
Support status
Current stable release
First release with images
23.05.4
Latest release with images
25.12.6
Snapshot only
No
Target
mediatek/filogic
Build profile
cudy_tr3000-v1, cudy_tr3000-256mb-v1
Download in Firmware Selector ↗
  • Hardware revision warning. Sold with 128 MB or 256 MB of flash; each needs its own OpenWrt image (check the label before flashing).

Source: official OpenWrt build data and Table of Hardware, data as of Oct 20, 2026, 11:45 AM UTC.

Hardware specifications

Factual data
SoC
MediaTek MT7981B (Filogic 820)
CPU architecture
ARM 64-bit (aarch64)
CPU cores
2
CPU clock
1.3 GHz
RAM
512 MB
Flash storage
128 MB NAND
Expandable storage
None
USB
1× USB 3.0
Power
USB-C, 5 V / 3 A

Source: www.cudy.com

Network and Wi-Fi

Factual data
Wired
Ethernet ports
2
Layout
1× 2.5 GbE WAN + 1× 1 GbE LAN
WAN speed
2.5 GbE
LAN speed
1 GbE
Multi-gig ports
1× 2.5 GbE
VLAN support
Yes
Wireless
Wi-Fi
Wi-Fi 6 · AX3000 · 2.4 / 5 GHz
Standards
802.11a/b/g/n/ac/ax
2.4 / 5 / 6 GHz
Yes / Yes / No
Max wireless speed
3.0 Gbps (theoretical)
Radios
2
Wi-Fi chipset
MediaTek MT7976CN
Antennas
—

Installation difficulty

Editorial opinion
Installation difficulty
Hard
Usual method
Check the device page for an intermediate Cudy firmware; otherwise open the case, connect a serial console and boot the OpenWrt initramfs over TFTP, then sysupgrade.
Recovery difficulty
Hard
Recovery method
Serial console and TFTP.

Our rating of how hard a first installation and an unbrick are for someone comfortable with a web interface. Always follow the official device page for exact steps.

Performance

Factual data
NAT routing throughput
Benchmark not yet tested
SQM (cake) shaping limit
Benchmark not yet tested
SQM (bufferbloat control)Good
Access point useGood
MeshFair

VPN performance

Factual data
WireGuard throughput
Benchmark not yet tested
OpenVPN throughput
Benchmark not yet tested
WireGuard suitabilityGood
OpenVPN suitabilityFair

Suitability ratings are our estimate from the CPU and architecture, not measurements. See the methodology.

Pros and cons

Editorial opinion

Pros

  • 2.5 GbE WAN port
  • 512 MB RAM and USB 3.0
  • Compact and USB-C powered
  • Low price

Cons

  • Installation may need a serial console
  • Two flash versions with different images
  • Only one LAN port

Editorial scores

Editorial opinion
Overall
7.6 / 10
OpenWrt friendliness
7.5 / 10
Ease of installation(higher is easier)
6.0 / 10
Performance
7.5 / 10
VPN performance
7.5 / 10
Value
9.0 / 10

Where to buy

Other regions (3)

Typical street price around $70 (editorial reference, not a live price). Prices are shown only if updated in the last 24 hours and may change; the retailer’s price at checkout applies. We may earn a commission from these links at no cost to you. Affiliate disclosure

Alternatives

Editorial opinion
GL.iNet Beryl AX
GL.iNet Beryl AX (GL-MT3000)8.8
Fully supportedHighly Recommended

Wi-Fi 6 · 512 MB RAM · 2.5 GbE · ~$89

Same platform with a much easier installation.

Compare side by side →

Related guides

Start with how to install OpenWrt or browse all OpenWrt guides.