Davuaz Da-K6402W 4-port 2.5GbE 2-port 10GbE Fanless Switch Review

The Davuaz Da-K6402W is another low-cost, fanless switch pushing 2.5GbE networking to new affordability brackets. This new 4-port 2.5GbE and 2-port SFP+ 10GbE switch we purchased on Amazon for $69 and decided to give it a try. If you saw our earlier review of the YuanLey YS25-0402 this is essentially the same switch, but we tore it apart and found a few small differences.

Davuaz Da-K6402W Overview

We featured this video in our September 2023 mini-round-up of fanless 2.5GbE switches that you can find here:

We have also added this switch to the  Ultimate Cheap Fanless 2.5GbE Switch Buyer’s Guide where we have now listed 32 models and we already have 5 more switches tested, but not on that list. Bookmark that page to get the latest, we will like all of these reviews from that page.

Davuaz Da-K6402W Hardware Overview

On the front of the switch, one can see four 2.5GbE ports and two SFP+ ports along with a snazzy blue Davuas faceplate.

We get four 2.5GbE ports that can also run at 1GbE and 10/100 speeds.

There are two SFP+ ports for higher-speed devices. If you have a primary workstation, a NAS, or even just an uplink, these ports are handy.

The switch itself is not much deeper than a SFP+ cage inside the switch as we can see from this side view. We also get the same green QC sticker as the YuanLey.

Here is the other side of the switch. This is a very small footprint switch that can be Velcro mounted just about anywhere.

The rear has a DC power input and a grounding point.

On the bottom, we get a label. We also get mounting holes so one can use two screws to mount the switch to a desk, wall, or elsewhere. Unlike YuanLey, Davuaz does not even try to print some, likely fake, regulatory markings. Instead, we just get a model number, serial number, and the fact it is a 12V DC-in device.

Inside the switch, we can see the ports and a relatively simple design. Something that was different compared to the YuanLey is that this switch did not have a thermal pad between the bottom of the PCB under the switch ASIC and the bottom of the chassis.

Here is the YuanLey where one can clearly see this pad.

Here is the internal overview which again mirrors the YuanLey.

We can see the switch chip with a glued heatsink and then a very packed switch board.

Next, let us get to performance and power consumption.