Taking a look at the priorities that embedded, Industrial IoT (IIoT) and machine-to-machine (M2M) designers set for industrial-grade solid-state storage, we’re witnessing the emergence of designs that call for a balance of performance, temperature control and design-friendly form factors. Jumping out as a strong SSD interface option that can meet that balance is eUSB.
While “e” in eUSB stands for embedded, some designers place a premium on the interface’s array of attributes — and include exceptional to that “e”.
Embedded designers seeking improved performance in space-constrained IIoT and M2M applications have introduced higher-speed interfaces like NVMe into the mix – while others continue on with the well–established SATA. Intel, for one, has become a strong proponent of NVMe, steering designers toward the interface primarily for its high speeds. But while NVMe delivers performance it may be overkill and does generate more heat, as do other smaller SATA form factors like M.2 when pushed to their performance limits AND designed into small areas with minimal or no airflow.
Of course, incorporating higher speeds isn’t the only factor in SSDs’ interface selection; capacity increases are also a considered and some form factors are better at accommodating capacity boosts. So there are multiple trade-offs: performance, power, temperature, capacity and physical size. And there’s the matter of software — developing code and gaining familiarity with customers’ use of different protocols is resource–intensive.
eUSB emerges as a compelling option – being on par and with some designs, the form-factor of choice over NVMe and SATA.
And with eUSB 3.0, its speed differential with NVMe becomes less significant. Furthermore, it’s fairly easy to deploy because USB has become the go-to interface – tens of billions of ports/connections are presently in use — and virtually every processor supports it.
So, given the array of viable interface options designers have and what each is capable of in solid-state storage, eUSB deserves a good, long look. When the measurement is ideal balance of performance, power, temperature, capacity and physical size. consider eUSB and including exceptional to that “e”.