COWEEN USB Male to Type C Femal Adapter Mini Portable USB AM to USB-C F Converter

Benson here again, reviewing legacy USB Type-C adapter on Amazon. Today I am reviewing Mobkit's "USB3.0 AM to Type-C Adapter Mini Portable USB Convert Type C Female Up to 5Gbps Transfer Speed"This adapter does NOT comply with the USB Type-C specification version 1.1. The documentation can be found at usb.org under developers/usbtypec.The Mobkit adapter violates Section 2.2 of the specification which states the following :"USB Type-C receptacle to USB legacy adapters are explicitly not defined or allowed. Such adapters would allow many invalid and potentially unsafe cable connections to be constructed by users."This is because if you combine this adapter with a USB Type-A to Type-C cable, you may create a dangerous condition where two power supplies may be connected together opposing each other using the combined cable.Furthermore, this adapter violates Section 2.3.1 :"Power is not applied to the USB Type-C host or hub receptacle (VBUS or VCONN) until the DFP detects the presence of an attached device (UFP) port."In my testing, even when no UFP device is attached, this receptacle port's VBUS line is powered on at 5V. It should only be at 5V when a UFP device is present.This adapter and port violates Section 4.5.1.2.1 - Please see figure 4-5. A correct DFP receptacle must use two identical but distinct Rp resistors. According to my testing, the Mobkit adapter's Type-C receptacle has a single 56kΩ resistor on just one of the two CC pins in the receptacle.This means that the Chromebook Pixel 2015 does not detect a charger device at all when the cable is in half of the possible plug orientations, as it depends on the presence of Rp to start charging.Finally, this adapter also claims to support USB 3.1 SuperSpeed, but because it is only a passive adapter, there is no way to support both orientations of a potential USB device. Indeed, when I tried it, it would only enumerate a USB-C thumbdrive in SuperSpeed mode in one plug orientation. Due to the nature of Type-C, building a proper version of such an adapter requires active electronics, specifically a mux that connects the correct SuperSpeed wires depending on the orientation of the plug. This adapter has no such electronics, being a cheap passive adapter.Long story short : This adapter is a type forbidden by the USB Type-C specification, and should NOT exist. It gets my lowest rating of 1-star because there is no simple thing that the manufacturer can do to make this adapter correct. As a consumer, DO NOT buy this cable to convert your USB-A chargers or USB-A hub or host ports

This adaptor is NOT USB 3.0. It only transfers data at USB 2.0 speeds.

this adapter is useful for basic type c connection change overs, or if you have a C to C end cable; however, it will not support the same conversion of bandwidth or display port functionality over a type C interface if you were looking to that as a solution, but only if you need for basic coversion oerside.

Worth what I paid for them, they are in easy alternative to a cable.

Never worked, delivered physically damaged.

May not be compliant or whatever that other guy was talking about, but it totally works like it needs to. I am using it to charge my Nexus 5X via my laptop. I don't use it to transfer files, but my laptop does recognize it.

I bought this before the trusted comments were posted by Benson Leung. I actually just had it delivered today, but haven't used it. I was buying it to use with a usb type c otg, not connect it to my phone. I'm glad I came back here to look for comments. I've been following Benson Leung since I bought the Nexus 6P a few weeks ago. He has great knowledge about USB Type C cables and which ones are safe, and which ones are not. He has tested a bunch of type c cables and has a guide out. Just Google his name. Thanks Benson.

Does the job its made for and allowed me to plug a new Type-C device into my Macs old stype USB3 port