UNBOXING & PHYSICAL CHARACTERISTICS
Like many other portable hubs available on Amazon, the Lemorele shipped in a shrink-wrapped white cardboard box. Included was a colorful sticker sheet and bookmark with contact info for the company but no user manual. Instead of a manual there was a warning sticker adhered to the dock that was impossible to read unless I peeled it off and stuck it to some white paper. Anyway, it provided some helpful product info about the power that the USB ports could provide. The hub construction is a familiar single-piece extruded aluminum shell with black plastic end caps.
This model comes with a 30cm cable which is longer than most hubs. This makes it easy to position where you want it on your desk which is especially helpful if you use a mouse next to your laptop keyboard. The cable is flexible and seems to have good strain relief on the ends. The hub itself is 11.5mm thick on the cable end and 15.5mm thick on the Ethernet end.
The port placement is a little odd with HDMI and the SD card reader on the same side. Usually, you’d want these on opposite sides since you’d have the HDMI going to the rear for the monitor and SDcard easily accessible in front. There are USB ports on both sides of the hub which makes it convenient for keyboard/mouse and thumbdrives though. The ports appear to be labelled faintly in black – which is almost impossible to read on dark grey anodized aluminum.
GENERAL USAGE NOTES
Unlike many other hubs, there is no status LED indicating power or data connectivity. The Ethernet port does have green/orange LEDs though which I like.
All ports worked as expected. Although the product page states that “2.4GHz wireless devices … and some USB 3.0 devices may not work in close proximity to a hub …”, I had no issues using a Logitech wireless mouse/keyboard combo alongside Ethernet and USB 3.0 data. Some budget hubs can generate interference resulting in dropouts with wireless devices.
The hub has two USB-C receptacles – one for PD input only and the other with data, but not video. Having a built-in USB-C data port is quite beneficial and not seen on many budget hubs.
The SD card reader is not enabled and enumerated on the USB 2.0 bus until you plug in a card. Although the hub has both microSD and SD card slots, only one can be used at a time. It is OK to plug in two cards, but only the first one will be recognized. You need to remove both cards and re-insert to recognize the other card.
POWER & CHARGING
The hub is able to accept 100W PD and deliver up to 85-87W to a laptop. The USB 3.x ports deliver up to 4.5W each while the USB-C port seems to be limited to 2.5W – I’m not sure why. It is a little disappointing that the USB-C port doesn’t support PD charging but PD is really only help for 15W and above which can’t be supported on a portable hub like this anyway. Still I think the USB-C port should at least support 7.5W charging. When powered by the laptop without devices connected, the hub consumes ~1 watt. With low-power devices like mouse, keyboard, SDCard, etc. it goes up to 5 watts.
The sticker adhered to the hub stated that any one individual port can provide up to 7.5W but I was not able to get more than 5W. Combined output of all USB ports shall not exceed 9W. So you can probably charge a cell phone and run a portable hard drive, but perhaps not both together while also using other devices. This is not surprising as most portable hubs work this way.
Data throughput testing is the least interesting for me but this hub does have an interesting hub chipset arrangement from Genesys which I’ll go into more detail in the topology section. Suffice it to say that USB 3.0 5Gb/s, SD cards, and Gigabit Ethernet all worked as advertised. If there is interest I’ll do some more in-depth speed tests but I wouldn’t choose one hub over another based on speeds. If you want the most robust throughput, the best choice is usually a desktop-class Dock of some sort and a dedicated pro grade SD card reader.
One note about the USB ports is that both the USB 2.0 and USB 3.0 ports are blue inside so its difficult to tell them apart.
4K60 and 1080p worked OK. I did not try 1080p120 but I expect it would work OK too since its less bandwidth than 4K60. I’m not sure which chipset runs the HDMI port.
I ran Furmark stress testing to exercise the CPU/GPU for 1 hour with a halfway charged laptop battery to ensure the maximum current was driven through the hub. Also connected was an SD card, 2 USB thumbdrives, a wireless keyboard/mouse, and a cellphone. So basically maxing out the hub. After an hour, the hub measured ~18°C above ambient at 38°C (room temperature at 20°C). The chassis had a mostly uniform temperature throughout with variations of only 2°C so heatsinking is done well. The sticker adhered to the hub stated that when using it at max load it can reach 150°F (50°C) but I did not experience this. 50°C is getting toward the unpleasant end of acceptable temperature ranges for consumer electronics so I’m glad my unit only reached ~40°C.