When Apple unveiled its plans to officially support external graphics over Thunderbolt 3, it provided developers with an opportunity to purchase its $599 External Graphics Development Kit. The kit included, among other things, Sonnet Technologies’ eGFX Breakaway Box Developer Edition, providing users with a 350W power supply, one 8-pin (6+2 pin) power connector, support for cards up to 225W, and 60W of power delivery capable of recharging a 13-inch MacBook Pro at full speed.
The $269 consumer version of the same box is similar to the one earmarked for developers, except it provides an 8-pin (6+2 pin) plus one 6-pin power connector, is capable of supporting cards up to 300W, but only supplies 15W of power for laptop charging.
On Tuesday, Sonnet announced the availability of its most powerful eGPU offering yet — the $349 eGFX Breakaway Box 550. This unit provides dual 8-pin (6+2pin) power connectors, support for cards up to 375W, and 87W of power delivery. In other words, the eGFX Breakaway Box 550 is the unit for you if you plan on driving graphics cards like Nvidia’s Titan Xp or AMD’s RX Vega 56, while requiring full speed charging for your 15-inch MacBook Pro. expand full story