To cover all market segments passion for the miniaturization of technology and introduction of connectors USB Type-C does not leave indifferent producers periphery. This applies particularly to the storage, the benefit of built-in capabilities of smartphones and tablets in this area are small, and a new connector allows you to “re-release” almost all the old products without significant changes. As a result, the market has a lot of variety of flash drives, external hard drives, card readers and other supplies is the new connector. Sometimes the whole novelty of it is limited and so much interest, such products do not cause.
However, often there are more interesting devices that can solve not one, but several problems. For example, the problem of compatibility: because many people are “on hand” has accumulated for many different “old” devices, change that to similar makes no sense (and, moreover, with them there are problems just connecting to older computers, or, much less, TV where USB Type-C and now practically does not occur).In addition, many modern “computers” are supplied with exactly one connector USB Type-C, so to connect to them at least a couple of devices without requiring separate hubs still will not work. So, sometimes a paradoxical situation: a man, specially bought an eight the Windows-tablet because of the compact and the support of virtually all the USB-devices (as well as the opportunity to work sometimes with the usual for the full-size computer programs), as a result of forced apart from the tablet to carry around a set of cables, adapters and USB-hub.
It is for this reason we are interested in, and the announcement in August by Transcend new line of drives with USB Type-C. More precisely, we are interested in one of its constituent units – compact card reader Transcend RDC2.
Compact ( “square” 4 × 4 cm with a short USB-cable) is a major advantage of the device: in fact, it is only slightly larger than the variety-OTG adapter to connect “standard” USB-devices to the ports Micro-USB/-C, but solves this problem, and also adds support for memory cards, both the microSD, and a full-size SD. Of course, it is realized by means of two-port USB-hub, which “branches” incoming flow into two: to implement the USB port type A and a card reader. The question immediately arises: how such a decision is compatible with a variety of Android-devices, which are one of the target applications RDC2? To test, we used the smartphone LeEco Le 2 , the benefit of the owner of such and similar devices, it seems, automatically goes to the target audience Transcend adapter because of a total of 32 GB of internal flash memory with no expansion options.
As you can see, the USB-flash card ( SanDisk’s the Dual the USB Drive the Type-the C , which can be connected to this smartphone directly, taking his only connection) and memory card ( SanDisk’s the Ultra microSDXC 200 GB ) “visible” at the same time. Thus, easily and naturally, we turned 32 GB of 264 GB, some of which, of course, to use a less convenient than the built-in memory, but the built-in memory could, at least, to expand. Now the increased volume may be used, for example, to store any data which can Android freely and without restrictions and copy embedded between the outer regions. Or to reset your smartphone (to be sent later elsewhere) photos from a camera – it just might come in handy support for a full-size SD-card.
Question supported by tanks and file systems (that is interconnected) is entirely determined by the firmware on the phone (or other device) – mostly the same for us in this case is the performance of a card reader with this class of devices. Perhaps it is not compatible with all such devices, although the novelty of the connector at the moment leads to its preferential use in smartphones to new hardware platforms with newer versions of Android (in principle, Transcend’s talking about compatibility even with very old already Android 4.0), and cheap smartphones. To increase the ease of use offers to download Transcend Elite, allowing you to back up data, download them in a variety of the clouds and so on. N. It is clear that a mandatory, this utility is not (because of support of standard file systems and operations of the OS Android ), but someone might come in handy.
In Windows also, of course, compatibility problems with hubs and, especially, the software is not present, but there is a question of performance, less current for Android-devices. Alas, the “good” answer to this question for users no: Transcend RDC2 only supports USB 2.0, because, in fact, is the “restyling” older RDP9, designed for connection to the Micro-USB port. Thus, the use of a card reader with the top-end laptop or tablet is not too justified – unless you arrange a low speed operation of the old interface.
Note that the supported USB version on the package does not have any device – only repeatedly referred to USB Type-C, which many “ordinary” users is almost synonymous with USB 3.1 (although one with the other has nothing to do). The site also references about Transcend USB 2.0 could only be found in the technical characteristics of the device, which he dedicated to the page you need to scroll to the end. You can also refer to the summary table with the performance characteristics of different card readers, according to which receive both USB 3.0 and connector type C can only be purchasing a card reader RDC8 – pretty big (because it supports all types of cards), but at the same time as the adapter is “S.” Unlike Transcend RDC2, unable to work.
In the process of studying the limitations became clear Transcend RDC2 and another unpleasant detail: despite the company’s statement of support for the card reader mode UHS-I, from SanDisk said we could not get a card higher than 20 MB / s in any of the device slots. Of course, against the background of the slow interface, this is not too noticeable, but still reduces the performance of one and a half times compared to the potential. At the hub “blame” does not work, because your flash drives put ≈30 MB / s issue, but with the cards still worse.
As a result, the positioning device company as «OTG Reader» for smartphones and tablets based on Android is fully justified: USB 2.0 interface at the same time will not, as a rule, be a bottleneck, because they themselves smartphones and tablets anything faster is often not supported . As for the more “serious” devices, such as a recent study of the tablet Huawei’s MateBook the HZ-W19 , then the role of their companion Transcend RDC2 suitable bad – except for the undemanding user who only needs, for example, mouse, and at least some work with the cards memory at the same time (without having to use a full-time, but a little bulky “dock” to a still further and some have a card reader connected). Realize Transcend support USB 3.0 – the device would turn more versatile. Most likely, and a little more expensive at the same time, but is unlikely to be the price difference was significant, because the absolute value of such gadgets is now low. However, the emergence of such a universal device, apparently, will have to wait – until the next update of the range.