CWWK 12th generation i5-12405H & 13th generation U300e Processon 10G full flash 4M2 4U2 NAS Board

I bought this motherboard and I am really satisfied. I went to 10G internet and realized my 8yo Macchiattobin was'nt able to transmit the signal past 6G.
So I decided to upgrade my router-server-nas, and start searching a board that with 2 10g ethernet ports, decent cpu, nvme and sata ports, low power consumption, small form factor (it stands behind books in a bookshelf) and finally silent...
Well, there's not many options... Solidrun offers the HoneyComb Ryzen V3000 which is probably perfect but 1000$ seems a lot of money.
So I took the plunge and ordered this chinese board for 300$, added some RAM, sfp+ modules, and my drives and got it running.
I realized soon that the board needs some amps and ended buying a meanwell 12V 180W desktop adapter for it.
If you need sata ports, you can't just plug in a SFF-8654 to sata cable as I tried, there's no sata controller on the board. but CWWK sells a M.2 to SATA3.0 (15$) which works great on the nvme board included.
In the end, I've got a fast, reliable, almost silent, proxmox server that runs a few VMs (mailserver, nextcloud, some audio stuff) and containers with a backup solution for everything running at my place.
When idle, which is most of the time, it consumes about 20W and otherwise never goes past 50W other than at boot, which is almost never.
In short, go for it if you need dual sfp+ cage and relatively low power consumption and decent cpu.

This product feels like a prototype rushed to market rather than a finished, reliable offering. There are numerous issues that buyers should be aware of:

Misleading Specifications – The product page is inaccurate. For example, the 10GbE network card runs on PCIe 2.0 x4, not PCIe 3.0 as many would expect. This significantly limits performance.

Power Design Confusion – When using a 19V DC power supply, the ATX12V 8-pin connector also receives 19V. The DC barrel jack and the ATX12V 8-pin are directly connected, which is undocumented and potentially dangerous if misunderstood.

Missing Interfaces in BIOS – The BIOS includes configuration options for two SATA ports, but the physical motherboard doesn’t provide any SATA connectors.

CPU Cooler Issues – On arrival, the CPU cooler screws were loose. I strongly recommend users check and tighten them before use. Under 50% CPU load (U300E version), P-core temperatures range from 60–70°C—something to keep an eye on.

Short SFF-8654 Cable – The included SFF-8654 cable is extremely short, roughly 100mm, which makes internal layout and cable management unnecessarily difficult.

PCIe x8 Slot Unusable (U300E Version) – The PCIe x8 slot receives power, but no connected devices are recognized.

Poor USB 3.0 Header Placement – The position of the USB 3.0 header is poorly designed. When using full-size PCIe x16 cards, it interferes with the header, making it unusable.

4x M.2 Adapter Compatibility Issues – The M.2 slot can recognize both M.2-to-PCIe and M.2 SATA devices, but there's a installation order requirement: devices must be installed in slot 1 and slot 4 first for proper detection. This is undocumented and may cause confusion during setup..

No Documentation or BIOS Support – There is no manual provided, no BIOS download link, and no clarity on whether any firmware updates will ever come.

Despite all these issues, the build quality of the motherboard is actually quite good. The M.2 NVMe slot supports full x4 speed, the onboard 10GbE NIC is a nice addition, and the eDP interface is also very convenient. Hopefully, future versions will address the current shortcomings. At this price point, perhaps it's unrealistic to expect too much. Overall, I'm still quite satisfied with the purchase.