As we eluded to earlier, the ALLONE Cloud Disk Drive 101 is made up of 4 major components: DRAM, Controller, Battery and SD Card backup. These components are all located on a full height PCIe x4 Gen1 add-in card.
For the DRAM, ALLONE has chose Kingston’s HyperX PnP. This SO-DIMM DDR3-1600 module is of the 1.35V variety. In total, there are 4 SO-DIMM slots, giving us a total capacity of 32GB.
Next up is the RamCore M5338e controller. This controller manages the DRAM and SD backup operations.
The battery backup solution is a large 3.7V 3000mAh external battery that is held in place by a plastic bracket. The battery serves two purposes. The first is to maintain the power for the system when there are brief power failures.
The second is to hold that power on long enough to back up to the microSD cards. There is an LED indicator to show when batter power is being applied.
Finally, we have the 6 microSD cards, which are also Kingston. These 8GB modules are all class 10 and are in a RAID 5 configuration, so the loss of a single card does not cause data loss.
Each microSD slot also has an LED to indicate whether the card has been removed. It is interesting that ALLONE chose microSD cards for their backup and not more reliable on-board NAND. ALLONE made it clear to us that the microSD cards are for emergency situations only, so they should not see very much usage.