This is common for flash storage, whether internal SSD, Flash Card, or external USB storage, and is due in part to a variance in how flash memory vs spinning platter hard drive manufacturers calculate megabyte. Hard drive manufacturers calculate a megabyte (or 1,000x1,000 bytes) as 1,000KBs, whereas the binary calculation for flash-based storage is 1,024KBs.
Example: For a 1TB flash-based storage device, Windows will calculate it as having a capacity of 931.32GB. (1,000,000,000,000÷1,024÷1,024÷1,024=931.32GB).
Furthermore, Kingston reserves some of the listed capacity for formatting (e.g., File Allocation Table) and other functions such as firmware and/or controller-specific information, and thus some of the listed capacity is not available for data storage.
FAQ: KDT-010611-GEN-06
FAQ: KSM-001125-002-01
FAQ: KSD-001525-001-00
Caution! The workarounds below will break RST RAID arrays and could lead to data loss. If your system has RST RAID arrays you should consider an alternate solution.
Workaround 1: Disable RST Control in BIO
This workaround requires BIOS options to enable or disable RST Control and is not available on all systems
Note: Please backup all important data before you proceed!
Once these steps are completed you may optionally switch back to "RST Controlled" in BIOS.
Workaround 2: Switch from RAID to AHCI in BIOS
This workaround is to change your system storage mode from RAID to AHCI and should work on all systems.
Note: Please backup all important data before you proceed!
Once these steps are completed you may optionally switch the storage mode back to RAID in BIOS.
FAQ: KSD-001525-001-01