The iPhone 15 series, released in September last year, received a feature update that allows Pro & Pro Max models to support recording in the ProRes format** to external storage devices. For the mass public, this may not be a perceptual upgrade. But for users who want to create images, this is undoubtedly a surprising new feature.
ProRes is an encoding format developed by Apple, mainly used for high-quality and professional-level editing and post-production, which is equivalent to RAW format files. ProRes files contain a lot of raw color information, which makes it easier for users to grade colors and improve work efficiency.
This update also means that smartphones can also participate in the professional video production process. Based on this function, combined with high-speed external storage devices, it is believed that it will be possible to create a new form of moving images. In terms of the choice of storage devices, there are nothing more than mobile hard disks and solid-state drive enclosures, and the latter is a solution favored by more users. The reason for this is that SSD enclosures are more cost-effective, and SSDs with different capacities can be swapped out on their own, making them more flexible.
Some time ago, the 3C brand Greenlink launched a 40Gbps SSD enclosure product. 40Gbps is the rate of the USB4 Thunderbolt 4 and Thunderbolt 3 interfaces, which means that it can provide ultra-fast transfer performance. In order to take full advantage of the iPhone 15 Pro's ProRes** external recording function, this hard drive case has also become my first choice.
In terms of configuration parameters, the hard disk enclosure of Greenlink uses ASM2464PD main control chip, with a theoretical rate of up to 40Gbps, and has good compatibility with mainstream equipment. The hard disk enclosure adopts a USB-C interface, and comes with a USB-A to USB-C data cable (10Gbps specification) and USB-C data cable (40Gbps specification) to meet the connection needs of different devices.
The core element affecting the hard disk enclosure is heat dissipation, and the temperature of the hard disk enclosure will slow down the transfer speed, or the device will not recognize the disk, resulting in the interruption of the transfer process. Greenlink's USB4 hard disk enclosure adopts a combination of active heat dissipation + passive heat dissipation, with a built-in turbofan that cools down the hard disk enclosure by inhaling external air, and the aluminum alloy body of the body also plays a role in rapid heat conduction.
In the actual use process, when the temperature rises to about 40, the turbofan of the hard drive enclosure will be automatically turned on. It's worth mentioning that the turbofan is so well controlled that it's almost impossible to hear when the fan is running, which is still to be praised.
In terms of measured rate, the hard disk enclosure uses Speed Test software and is loaded with PCIe 4The 0-specification SSD was measured, and the read speed was nearly 3300MB s, and the write speed was also nearly 3000MB s. If you use it with the iPhone 15 Pro, the transfer rate can run up to about 1000MB s, whether it is daily file copying or ProRes ** recording, it can ensure high speed and efficiency.
Seeing this, some people may ask, iPhone 15 Pro uses USB 32. The interface rate is only 10Gbps, is it overkill to match USB4 hard disk enclosure with 40Gbps rate? In fact, the significance of iPhone external recording ProRes ** is that after completing the recording of ** material, you can quickly access the computer for editing, and use the hard disk box as an editing disk, saving the time of material transfer and copying. In this way, the efficiency of image creation can be greatly improved.
In recent years, mobile image creation has become more and more popular among the general public. In particular, the rapid development of various short ** platforms has also become a strong driving force to boost mobile imaging. In fact, in addition to Apple, mobile phone manufacturers in the Android camp are also actively deploying in the field of mobile imaging, including but not limited to launching advanced imaging technology, holding image-related competitions, and so on. The combination of mobile phone + SSD enclosure mentioned above is also a solution for mobile imaging and is worth trying.