| Hot–plug of M.2 drives | Yes | 
| LED activity of M.2 drives | Yes | 
| Controlled firmware update | Yes | 
| RAID levels | RAID 1 and Non–RAID | 
| Stripe size | Supports default 64 K stripe size only | 
| Battery backup unit | No | 
| Non–volatile cache | No | 
| Virtual disk cache function | Write through | 
| Maximum number of virtual disks | 1 | 
| Maximum number of drives supported | 2 | 
| Support for non–RAID disks | Yes (supports up to two disks) | 
| Drive types | 6 Gbps M.2 SATA SSDs x 2 | 
| PCIe support | Gen 2 | 
| Disk cache policy | Drive default | 
| TRIM | Non–RAID mode | 
| Stripe size supported | 64 K | 
| Configuration (HII) | Yes | 
| Full initialization | No | 
| Fast initialization | Yes NOTE: By default, fast initialization is performed when you create a virtual disk.  | 
| Background initialization | No | 
| RAID 0 | No | 
| RAID 1 | Yes | 
| Single non–RAID | Yes | 
| Dual non–RAID | Yes | 
| Degraded RAID 1 and non–RAID | No | 
| Foreign import | Yes | 
| Consistency check | No | 
| Patrol read | No | 
| Load balance | N/A | 
| Rebuild | Yes (Only Auto–rebuild) | 
| Hot spare | No | 
| Change rebuild priority/rate | No | 
| Virtual disk write back/read ahead cache | No NOTE: BOSS-S2 controller does not support controller cache.  | 
| Battery support | N/A NOTE: BOSS-S2 controller does not support a battery.  | 
| Non–RAID disk cache policy | Yes NOTE: OS controlled or device defaults.  | 
| SMART Info | Yes NOTE: Use the BOSS-S2 CLI to retrieve the SMART information from the drives.  | 
| Physical disk hot–plug | Yes | 
| Virtual disk expansion | No | 
| Virtual disk slicing | No | 
| Virtual disk migration | Yes NOTE: On new controller, virtual disk must be imported from HII before presented to OS.  | 
| Split mirror | No NOTE: System required to shutdown and migrate one physical disk to another system and continue rebuild.  | 
| Non–RAID migration | Yes | 
| BIOS configuration utility (Ctrl-M) | Yes | 
| Add on driver for data path (OS device driver) | No NOTE: Console Windows driver or Linux library is required for management purposes only.  | 
| 4 K native drive support | No | 
| TRIM and UNMAP virtual disk | No | 
| TRIM and UNMAP non–RAID physical disk | Yes | 
| Self-encrypting drives (SED) support | No | 
| Cryptographic erase (sanitize) | Yes NOTE: If drive supports SANITIZE Crypto Erase. No other encryption support from controller or drive.  |