“I tried other 3-port USB hub+RJ45 before without success, the Pimoroni adapter just works!
https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=161121
Hermann.”
“TL;DR A good piece of kit and well worth the money!
The adapter arrived in a small zip-lock packet labelled "ADP005 Three Port USB Hub with Ethernet microB connector". First impressions are a neat and well made package of white, apple-like, hi-gloss plastic and smooth edges.
Measuring 85mm long by 24mm wide and 16mm high, it has a 115mm (approx) flylead with a moulded USB microB connector on the end. This comes out one end and the ethernet port is on the opposite end. The three USB ports are on one side near the end with the lead.
On the opposite side to those USB ports is a recess containing a label with the usual FCC and CE marks and some product information:
* USB Multi-function Lan Adapter
* USB Ethernet and 3Port HUB
* YS-LAN26 RT8152B
Activity lights permeate this label, offering a blue led glow.
There appears to be no easy way to open the case if one wanted to extract the innards for a project.
Some network tests using a Pi Zero running ArchLinuxARM follow. The network came up as a DHCP client without any special consideration.
A test using "nc" (pacman -S gnu-netcat) pumps a gigabyte across the network:
PiZero: 202.867s 5.3MB/s 42.4Mb/s
PiB256: 323.495s 3.3MB/s 26.4Mb/s
PiB512: 325.257s 3.3MB/s 26.4Mb/s
IntelX86: 91.2377 s, 11.8 MB/s 94.4Mb/s
An alternative test using "iperf" (pacman -S iperf)
PiZero: 94.0 Mbits/sec
PiB256: 57.6 Mbits/sec
PiB512: 58.1 Mbits/sec
IntelX86: 94.1 Mbits/sec
100base-T theoretical maximum is 100Mb/s or 12.5MB/s”
“Over the last few months I've had to flash SD cards almost every day for Pi Zero projects and writing. This has become indispensable for setting up Pis - it plugs straight in without a shim, will take a network cable (for zero config internet access via home router) and then gives three USB ports for a keyboard or mouse and a WiFi dongle. Once WiFi is set up everything can be unplugged and used headless. Get one so that you don't have to mess about with powered hubs, shims and USB Ethernet adapters.”
“A very nice, sturdy USB hub. It can also be plugged into a phone or tablet if it supports OTG because of the micro-USB cable. Then, it can be used to plug in keyboard, mice or flash drives or create a wired connection.
Altogether, it's a very nice cable to use if you type or browse a lot, don't like the default keyboard, want a wired connection or like using flash drives.”
