They have been designed for industrial computers, special-purpose PCs, POS, ATM and other 24/7 systems.
Apparently the SO-DIMMs can be used safely in SFF PCs without decent cooling for prolonged amounts of time.
Transcend used PCBs with industrial-grade capacitors, 30?m gold-plated contacts which are designed to withstand shock, electromagnetic disturbance and extreme temperatures from –40°C to +85°C.
This means that you could use them in Antarctica, or the Lut Desert. In practice they will end up under the bonnet of space-constrained industrial PCs, military systems, embedded systems which can’t get decent cooling.
The SO-DIMMs are based on Samsung’s 8 Gb B-die DDR4 chips and come in 8 GB and 16 GB flavours. They are rated to operate at 2400 MT/s at 1.2V, which means that they are fully compatible with the industrial-grade, embedded and low-power CPUs that support DDR4 at JEDEC speeds.
No official release on price though.