NVMe drive support.
NVMe is a communication protocol designed specifically for SSD modules and used when connected via the PCI-E bus. This protocol was developed to eliminate the shortcomings of earlier connection standards (like SCSI or SATA) — primarily low speed, which did not allow realizing the full capabilities of solid-state memory. NVMe takes into account the key advantages of SSD — independent access, multithreading and low latency. Support for this protocol is built into all major modern operating systems; it works not only through the original PCIe interface, but also through M.2 (see Form Factor). And the U.2 connector was generally created specifically for NVMe SSDs (although the presence of this connector in itself does not mean compatibility with this protocol).
The type of cable that comes with the drive.
This parameter is relevant only for external models (see "Type"). The type of cable is indicated by the types of connectors at its ends, with the plug for connecting to the drive being the first, and the plug for connecting to the computer being the second. Specific types of connectors can be as follows:
— USB A. Plug for traditional full-size USB ports — such as those provided in most computers and laptops. Actually, such a plug is used only at the “computer” end of the cable — USB A connectors are too bulky for the drives themselves.
— USB-C. The newest of modern USB connectors. Unlike its predecessors, it has a two-sided design — the plug can be inserted into the connector by either side. Very compact, making it suitable for installation in the drive case; however, it is also found in computers/laptops, so USB-C plugs can be provided on one or both sides of the cable.
— Micro B. Plug under the microUSB connector; such a connector is familiar to many from portable gadgets like smartphones and tablets, it is also found in SSD drives. Actually, the micro B plug is provided only on the side of the drive — this connector is practically never found in computers.
— MiniUSB. Another smaller version of the USB plug, in many ways similar to the micro B described above. Nowadays it is considered obsolete and has practically fallen into disuse.
The most common bundled c
...able options are USB-C — USB A, USB-C — USB-C, micro B — USB A and mini USB — USB A. Some drives that have a USB-C connector are equipped with two types of wire at once — with USB-C and USB A at the "computer" end.The level of protection allows you to understand how much the device is protected from dust and moisture. This is achieved due to the tightness of the case, additional rubber gaskets and is naturally displayed in numbers — for example IP67 (this level of protection indicates the
waterproofness of the SSD). The first number indicates protection against dust, the second one tells about water protection. Now more about the possible numbers.
Dust protection:
5 — dust resistance (dust can get inside in small quantities that do not affect the operation of the device);
6 — dust protection (dust does not penetrate inside).
Water protection:
5 — protection against water jets from any direction (showers, storms).
7 — the possibility of short-term immersion under water to a shallow depth (up to 1 m).
8 — the possibility of a long (30 minutes or more) dive to a depth of more than 1 m. But specific restrictions on depth and time may be different.
