IN Brief:
- Upcoming PE5 and PD5 PCIe 5.0 SSDs extend to 30.72TB and 3.4 million random-read IOPS.
- The wider portfolio includes pSLC drives, industrial-temperature DDR5, LPDDR5, managed NAND, and removable flash.
- Power-loss protection, endurance, qualification, and lifecycle continuity remain central as industrial storage adopts faster interfaces.
Exascend has expanded its enterprise and industrial memory portfolio around PCIe 5.0 solid-state drives, hardware power-loss protection, high-endurance pSLC configurations, and wide-temperature operation.
Upcoming PE5 and PD5 SSDs will provide capacities up to 30.72TB and random-read performance reaching 3.4 million input/output operations per second. The new products extend a range that already includes PCIe 4.0 and SATA drives, managed NAND, removable flash, and industrial DRAM.
Existing PE4 Streaming drives reach 30.72TB in a U.2 form factor, with sequential reads specified at up to 3,350MB/s. PE4 Max variants use pseudo-single-level-cell operation and are rated for as many as 25 complete drive writes per day over five years in intensive write workloads.
The accompanying memory catalogue includes DDR4 modules at 3,200MT/s and DDR5 modules reaching 5,600MT/s in U-DIMM and SO-DIMM formats. Industrial-temperature DDR5 options operate from −40°C to +95°C, while LPDDR5 devices are offered in 32Gb and 64Gb BGA packages at data rates up to 6,400MT/s.
Hardware power-loss protection uses stored energy inside the drive to complete selected internal operations when the external supply disappears. Buffered user data, flash-translation tables, metadata, and mapping updates can then be committed to non-volatile memory before the controller stops operating.
An SSD may acknowledge a completed host write before every affected NAND page and management structure has been updated. Without enough hold-up energy and controlled firmware behaviour, an abrupt shutdown can corrupt recent data or the translation information used to locate valid data across the flash array.
Industrial computers, data recorders, edge servers, communications systems, test equipment, and vehicle electronics can all encounter uncontrolled power removal during faults or maintenance. Protection therefore has to be tested against the drive’s actual workload and supply-decay profile rather than treated as a generic feature label.
pSLC offers another route towards more predictable endurance by operating multi-level NAND with fewer stored voltage states. The wider margins improve programme and erase behaviour, retention, and write consistency, although usable capacity falls and cost per gigabyte rises substantially.
Architectures can reserve pSLC for logs, databases, journals, or other frequently rewritten data while using conventional flash for larger, less demanding storage areas. Applying the highest-endurance mode across an entire capacity can add cost without improving the parts of the workload that are limited by read performance or infrequent writes.
PCIe 5.0 doubles the transfer rate per lane compared with PCIe 4.0, yet interface speed alone does not determine sustained industrial performance. Controller design, NAND parallelism, queue depth, firmware, host software, workload mix, and thermal throttling can prevent a drive from maintaining its headline throughput.
Thermal management becomes harder as controllers move more data through compact form factors. A drive may meet its peak specification during a short bench test and then reduce speed when installed beside processors, accelerators, and power converters inside a sealed embedded computer.
Very high capacity also concentrates failure exposure. Placing more than 30TB on one device reduces slots, cabling, and board area, but a single fault affects a larger quantity of data, increasing the importance of redundancy, monitoring, replacement time, rebuild behaviour, and backup policy.
Memory investment is being pulled strongly towards AI infrastructure, where high-bandwidth memory, enterprise storage, packaging, and power delivery compete for manufacturing capacity. The second-quarter market picture showed how pressure in one high-volume segment can alter availability, pricing, and product priorities across industrial electronics.
Long-lifecycle systems face another constraint because NAND generations, controllers, and firmware change more quickly than many qualified products. Product-change notification, controlled substitutions, firmware traceability, validation support, and access to replacement configurations may outweigh a modest improvement in benchmark speed.
Secure storage and component continuity have also become closer concerns. Work linking secure industrial storage with semiconductor supply reflects the wider move towards treating data integrity, power protection, device identity, and long-term availability as parts of one system architecture.
Exascend’s PCIe 5.0 expansion raises capacity and throughput for rugged storage, but qualification will still turn on power-loss behaviour, sustained temperature, endurance, firmware control, and lifecycle support. Those properties determine whether a fast drive remains predictable after years of field operation and several generations of host hardware.
