Benson here again, continuing my reviews of USB Type C legacy cables. Today I am reviewing Bridgegen's " 6.6 Ft/2M Braided Cable with Reversible Connector" To be clear, this is an A-to-C cable.
Let's talk about spec compliance. My test setup today include a Chromebook Pixel 2015, and a Chromium OS USB-PD Sniffer (codename Twinkie). Please check it out by searching google for "Chromium USB-PD Sniffer". This product is also available on Amazon here : Plugable USB 3.1 Type-C (USB-C) Power Delivery Sniffer
I got a comment in one of my previous reviews that I should be testing with a 2.4A capable power supply to demonstrate that the cable is of good enough quality to sustain 2.4A charging, so for this review, I am using one of Apple's 1st party power adapters with a 5.2V, 2.4A charging capability, specifically Apple's 12W iPad charger.
Running the ectool command on Pixel: localhost ~ # ectool --dev 1 usbpdpower Port 0: SNK Charger Proprietary 4669mV / 2400mA, max 5000mV / 2400mA / 12000mW Port 1: SRC
In this case, the Pixel has negotiated up to 2.4A of charging through the Bridgegen cable to the Apple charger.
Switching over to the USB PD sniffer, I'll run the "tw cc" command to get a voltage reading on both CC lines:
> tw cc CC1 = 433 mV ; CC2 = 7 mV
The important number to look at here is CC1, which indicates a voltage of 433mV. If you refer to the USB Type-C Specification 1.1 Table 4-25. Look at the row labeled vRd-USB, which indicates the legal voltage values to read from the CC pin in order to be categorized as "Default USB Power". The range is Min : 0.25V Max : 0.61V. For this cable, I measured a value of 0.433V right in the middle of this range, indicating that yes, this cable has a 56kΩ resistor and is within spec for CC termination.
For a USB 2.0 High Speed data test, I’ve hooked my Nexus 5X to my Chromebook Pixel via the Bridgegen Type-A to Type-C cable to test large file transfer via MTP. It just works, no problem!
For other more subjective judgements of this cable : The Type-C plug on this cable is a very good quality plug made with a deep-draw extrusion process. The plug is a single continuous piece of metal all the way around, meaning it's stronger than other stamped type plugs. This type of plug very similar to the kind that is used on all of Google and Apple's Type-C plugs, and the quality shows here. The Bridgegen cable also has a very nice and thin braided nylon. The ends of both connectors are a high quality aluminum shell, which mesh well with all-aluminum products like MacBooks, Pixels and Nexus 6P.
Overall, a very nice set of design choices by Bridgegen. This is the first braided nylon cable I have reviewed to have the deep-draw type-C plugs.
In conclusion, this is a fine cable for your Nexus 6P/5X to use with all of your older USB Type-A chargers, hubs, and PCs. It also works great with Chromebook Pixel 2015 and will work great on USB Type-C spec compliant devices to come!