So I set up a fiddler proxy on my PC which is connected to my lan via 1Gbit wired. Loaded up a simple file server on my PC. Configured the Switch to use the fiddler proxy on my PC The Switch is connected via WiFi. I then added a redirect to my file server and voila! As you can see, downloading a 1.5GB file onto the switch results in a transfer speed of 89MB/s which is the speed that my SDCard is rated at - Samsung PRO+ UHS3 90MB/s. Although I'm not sure if it's using the SDCard or the eMMC NAND but either way it's blazingly fast!