Working speed of PCs also depends on the storage media on which system software and programs are installed.
SSDs are substantially faster than current hard discs (HDDs).
Then again, the speed of the hard disk is determined by 1. the interface technology and 2. the data transfer protocol.
Traditional hard discs still use the SATA connector for data transfer, whereas U.2 is the new physical interface.
In comparison to SATA or SAS SSDs, U.2 SSDs show a faster response time. U.2 supports four PCIe lanes.
NVM Express ( = NVMe, Non-Volatile Memory Express) is a more sophisticated data transfer protocol and successor of AHCI (Advanced Host Controller Interface).
NVMe distinctly improves the sequential read and write performance of data by reducing the latency and reaching a high grade of parallelism, for example.
All in all, PCIe SSDs that use the NVMe protocol provide a clearly measurable speed increase.
In the area of U.2 / NVMe Delock offers a wide range of converters, PCIe cards and cables.
For an overview click here
Three examples of species diversity in the area of U.2 / NVMe
2.5″ Converter U.2 SFF-8639 >
M.2 NVMe Key M
This converter enables the connection of a M.2 SSD in 2280, 2260, 2242 and 2230 format.
The converter can be internally installed into the system through the U.2 68 pin interface.
Details Item 62710
PCIe Card > 1 x internal NVMe M.2 PCIe /
1 x internal SFF-8643 NVMe
This PCI Express card expands the PC by one M.2 slot. One M.2 module in 2280, 2260, 2242 or 2230 format can be connected.
Furthermore e.g. one SSD with U.2 interface can be connected by using an optional cable.
Details Item 89517
Adapter M.2 Key M >
This adapter enables the connection of a NVMe memory e.g. U.2 SSD via the SFF-8643 interface to a M.2 slot.
Details Item 62721