The flat Ethernet Cable supplied with iHost is an 8 conductor straight through cable. Please be aware that when connecting to some (older) routers or Ethernet Switches that can’t sense tx /rx a cat 5 reversal cable may be required. This is a bit basic but something worth remembering.
Oh, the good old crossover cable, truly the sock-and-sandal combo of the networking world. Useful in its heyday, sure, but nowadays it feels like needing a floppy disk to update your router’s firmware.
It’s kind of charming though, like finding a rotary phone in a tech support drawer. “In case of emergency, please deploy this relic from the Ethernet Stone Age.” But hey, if your setup actually needs one of those, I salute your dedication to keeping vintage tech alive. You might just be the Indiana Jones of networking. 
A lot of ancient networking gear is still suitable for use with small data packets, low speed transmission telementary equipment (such as Sonoff Wi-Fi devices) so long as it sits behind the internet firewall of an up to date router. Cable Routers make sense- just have their WAN Port connected to a LAN Port of the next router up in the hierarchy. Change of ISP and new ISP Router only involves unplugging the WAN Ethernet Cable and plugging it into a LAN Port on the new ISP Router-- there’s no need to re-input all of the settings. Have PEN (Penetration) tested our networks from the Internet and they stand up very well.