personally, I would not buy a CM4 with eMMC.
With the module you can not use the SD card reader of the board. (the pins are not wired)
And if the eMMC is worn out you can only boot from USB.
Here is the written data volume on one of my SD cards:
Lifetime writes: 4262 GB
I didn't want one with eMMC either but that was all that was available for a not very overly exaggerated price. Both the router board and the CM4 I/O expansion have MicroSD slots so I am hopeful these will work.
Wow! I guess I need to cancel this order then. I cannot believe the SD slot on the router board or I/O card will not work. This is crazy!! Thanks for the heads up. I will do a bit more research before I cancel the order. _________________ Linksys EA8500 (Internet Gateway, AP/VAP) - DD-WRT r53562
Features in use: WDS-AP, Multiple VLANs, Samba, WireGuard, Entware: mqtt, mlocate
Wireless 5ghz only
Netgear R7800 (WDS-AP, WAP, VAP) - DD-WRT r53562
Features in use: multiple VLANs over single trunk port
Linksys EA8500 WDS Station x2 - DD-WRT r55779
Netgear R6400v2 WAP, VAP 2.4ghz only w/VLANs over single trunk port. DD-WRT r55779
OSes: Fedora 38, 9 RPis (2,3,4,5), 20 ESP8266s: Straight from Amiga to Linux in '94, never having owned a Windows PC.
The raspberry4b or the CM4 has a quadcore A72 with 1.5Ghz, the CPU is depending on what you calculate about twice as fast as the R7800.
You can reach a wireguard performance of ~600Mbit with the RPI4.
This is about the same throughput that an APU2 achieves.
So theoretically, this is already quite powerful hardware that is available for ~100€.
Well at the moment not because the boards are due to the chip shortage in the delivery delay.
I was able to cancel the order for the eMMC version. Now back to square one, trying to find a CM4 Lite (no eMMC). Thanks for letting me know this before it was too late to stop the order. _________________ Linksys EA8500 (Internet Gateway, AP/VAP) - DD-WRT r53562
Features in use: WDS-AP, Multiple VLANs, Samba, WireGuard, Entware: mqtt, mlocate
Wireless 5ghz only
Netgear R7800 (WDS-AP, WAP, VAP) - DD-WRT r53562
Features in use: multiple VLANs over single trunk port
Linksys EA8500 WDS Station x2 - DD-WRT r55779
Netgear R6400v2 WAP, VAP 2.4ghz only w/VLANs over single trunk port. DD-WRT r55779
OSes: Fedora 38, 9 RPis (2,3,4,5), 20 ESP8266s: Straight from Amiga to Linux in '94, never having owned a Windows PC.
Wow, after nearly 16 months of waiting, finally got my CM4 today. It was only $35 from Adafruit for the 2GB version, w/wifi and no eMMC. Now, if I can just remember where I put my CM4 Routerboard. IF I can find it in a timely manner, this will be a nice distraction from troubleshooting k6.1 builds for the EA8500. Nice change! lol _________________ Linksys EA8500 (Internet Gateway, AP/VAP) - DD-WRT r53562
Features in use: WDS-AP, Multiple VLANs, Samba, WireGuard, Entware: mqtt, mlocate
Wireless 5ghz only
Netgear R7800 (WDS-AP, WAP, VAP) - DD-WRT r53562
Features in use: multiple VLANs over single trunk port
Linksys EA8500 WDS Station x2 - DD-WRT r55779
Netgear R6400v2 WAP, VAP 2.4ghz only w/VLANs over single trunk port. DD-WRT r55779
OSes: Fedora 38, 9 RPis (2,3,4,5), 20 ESP8266s: Straight from Amiga to Linux in '94, never having owned a Windows PC.
Whatever happend to @the-joker ? He just kinda disappeared. He was so prominent on these forums for about 8 mos, then gone. I dunno. He did good work on the WebUi. _________________ Linksys EA8500 (Internet Gateway, AP/VAP) - DD-WRT r53562
Features in use: WDS-AP, Multiple VLANs, Samba, WireGuard, Entware: mqtt, mlocate
Wireless 5ghz only
Netgear R7800 (WDS-AP, WAP, VAP) - DD-WRT r53562
Features in use: multiple VLANs over single trunk port
Linksys EA8500 WDS Station x2 - DD-WRT r55779
Netgear R6400v2 WAP, VAP 2.4ghz only w/VLANs over single trunk port. DD-WRT r55779
OSes: Fedora 38, 9 RPis (2,3,4,5), 20 ESP8266s: Straight from Amiga to Linux in '94, never having owned a Windows PC.
He reported to be Still Alive and not abducted by aliens in June of this year. Always good news
He is a valuable asset to the forum and I wish him well as I'm sure does everyone.
Whew, glad to hear he was not abducted by aliens! Yes, I absolutely wish him well too. _________________ Linksys EA8500 (Internet Gateway, AP/VAP) - DD-WRT r53562
Features in use: WDS-AP, Multiple VLANs, Samba, WireGuard, Entware: mqtt, mlocate
Wireless 5ghz only
Netgear R7800 (WDS-AP, WAP, VAP) - DD-WRT r53562
Features in use: multiple VLANs over single trunk port
Linksys EA8500 WDS Station x2 - DD-WRT r55779
Netgear R6400v2 WAP, VAP 2.4ghz only w/VLANs over single trunk port. DD-WRT r55779
OSes: Fedora 38, 9 RPis (2,3,4,5), 20 ESP8266s: Straight from Amiga to Linux in '94, never having owned a Windows PC.
