correct, the card is working very well appart from the previously described temperature issue.
I dont own a "full AC" device appart from my ipad so my tests are mostly based on 802.11n
I got that one : http://varia-store.com/Wireless-Systeme/MikroTik-RouterBoard/MikroTik-R11e-5HacT-Leistungsstarke-miniPCIe-Karte::28426.html
things to consider
3xMMCX connecter (I use external 5ghz antenna with stands)
5GHz only (requires DFS support in the kernel)
no beamforming support
unclear temperature issue with macbook (and others?)
root@xenial:~# uname -a Linux xenial 4.6.0 #1 SMP Mon May 16 13:53:14 CEST 2016 x86_64 x86_64 x86_64 GNU/Linux
firmware, I am currently using the CT firmware (http://www.candelatech.com/ath10k.php) to check if that solved my temperature issue, but it had no effect. May 17 11:28:29 xenial kernel: ath10k_pci 0000:05:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 19b6:d03c May 17 11:28:29 xenial kernel: ath10k_pci 0000:05:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0 May 17 11:28:29 xenial kernel: ath10k_pci 0000:05:00.0: firmware ver 10.2.4.97-1-ct-swc-D-002-5558e8 api 5 features wmi-10.x,wmi-10.2,raw-mode,adaptive-cca,mfp crc32 56488b5c
That is correct, pcengines.ch sells the w600 as well, however, bear in mind that you dont get the "full" ac speed with two antenna (867mbps) vs three antenna (1.299mbps).
AC wave2 actually defines up to 8 antennas (6.930mbps).
Also more antennas will help to maintain throughput in a multi-endpoint environment as well as increase coverage.
I would rather have a whole in my pcengine case ;) that is why I opted for these http://varia-store.com/Antennen/Antennen-2-4-2-5GHz/Antennen-Magnetfuesse-2-4-2-5GHz/Antennen-Magnetfuss-MMCX::287.html
I personally wouldn't recommend a WLE600VX (is that what you meant with W600?)
Since in any case I prefer sturdy MMCX connectors that are available with the above MikroTik Cards.
Thanks for the tip with "MMCX Magnet Foot Antenna". I will give it a try. Though I love the compactness of the whole thing with my 4 current "Delock 88395" antennae.
5ghz signal propagation is heavily impacted by even small objects.
I initially had the antennas placed in the center of a bookshelf, but found that I get a much better SNR if placing ontop of the shelfs.
The external antennas give you much more freedom to find the optimal reception as well as “aesthetic” placement. The pcengine board is tucked away behind some books.
out of curiosity I now bought both: a R11e-5HacD (dual chain 802.11ac) and R11e-5HacT (triple chain 802.11ac)
In terms of speed I can't see much difference between the two. An 'iftop' running on my laptop shows amazing 65MBytes/s when copying data from a local machine in my network via an APU2C2 configured as accesspoint and any of the above cards. The accesspoint is debian 9 (aka stretch) based.
BUT: with some Android WLAN clients the R11e-5HacT temperature reported by 'sensors' reaches values well beyond 80C(!). This seems plausible when trying to touch the heat sink with my fingers.
The only workaround I know of is to alter some duty cycles writing values != 0 to 'cur_state'. E.g. like this