The compact LMP USB-C Basic Hub brings back the vital connectivity to the 12″ MacBook or the 13″ and 15″ MacBook Pro: 3 USB 3.0 ports, SD and microSD card reader and a USB-C port for Power Delivery (pass-through power from USB-C power adapter to laptop).
The USB 3.0 ports transfer data from and to the laptop and are ideal for attaching multiple USB devices such as an external USB HDD/SSD enclosure, a USB mouse or a USB printer. The marked USB port (1.5A/BC1.2) can charge a smartphone or tablet with up to 1.5A when Power Delivery (PD) is attached. The card reader supports SD (including SDHC/XC formats) as well as microSD memory cards and transfers photos and videos quickly to the computer. The USB-C port can be used to charge the laptop (using the advanced PD 3.0 standard) and supply more power to the USB 3.0 ports (up to 3A with PD).
Compact and versatile, the LMP USB-C Basic Hub suits the everyday needs of the digital world.
Note: Not compatible with Apple USB SuperDrive
After attaching another USB device, all USB 3.0 ports stopped working.
The total power output to the USB 3.0 ports is limited to 2.0A without a USB-C power adapter attached (no PD) and 3.0A with PD. By adding another USB device, the total power consumption of all USB 3.0 ports must have gone over the 2A (no PD) or 3.0A (with PD), resulting in the shot-down of all USB 3.0 ports.
You must either attach the USB-C power adapter to get more power to the ports (3.0A max.) or disconnect one of the USB devices so the total power consumption is within the limits.
Without PD (2.0A), you can typically mount 1x external USB 2.5″ HDD/SSD (bus powered), 1x USB Flash and 1x USB mouse (low-energy devices). With PD (3.0A), you should be able to connect up to 2x external USB 2.5″ HDD/SSD (bus powered) plus 1x USB Flash or 1x USB mouse (low-energy devices). Note that the power consumption of any attached device varies (e.g. depending on the type of HDD or SSD in use for 2.5″ HDD/SSD and the USB-SATA PCBA in use) and therefore cannot be guaranteed.
The LMP USB-C Basic Hub gets hot even there is only one port in use.
It is normal that any USB-C hub or dock becomes hot when attached to the laptop. The aluminum housing is meant to dissipate the heat from the inside to the environment. There is a number of chipsets working on the inside which are producing some heat since they are constantly in a stand-by position to react quickly should any port be used. The surface temperature is well within the allowed limits and reaches about 40° C in stand-by mode, 43° C under normal use and a max. of 48° C when all ports are in full use, CPU load at 100% and PD attached. The heat does neither pose a danger to the laptop or any attached device, nor does it influence the USB-C hub’s/dock’s performance or even shorten the life-span.
Furthermore, the surface appears to be hotter than it actually is since it is touched with the very senstive fingertips. We suggest to remove the USB-C hub/dock when not needed in order not to emitt unnecessary heat to the environment and not to use any energy.