The board supports mSATA which is an older standard so it is harder to get media for it. I keep mixing up mSATA and M.2 all the time, so:
- Serial ATA: Mini-SATA (mSATA) – Wikipedia
- PCI Express: Mini-SATA (mSATA) variant – Wikipedia
- [Wayback/Archive.is] What’s the Difference Between mPCIe and mSATA? | Electronic Design
- [Wayback/Archive.is] Comparing M.2 SATA vs. mSATA | Delkin Devices
mSATA, or miniSATA, is a smaller, thinner version of the full-size SATA SSD. The current mSATA works using SATA III, so it also reaches speeds of up to 6Gb/s. mSATA is essentially the same as the SATA SSD, except the outer shell is removed in order for it to be used in thin-profile devices. Many devices rely on mSATA, so although newly designed applications may opt to use M.2 SATA, mSATA still plays a central role in industrial storage.
- [Wayback/Archive.is] Solid state drives vergelijken & kopen (filter: mSATA) – Tweakers
The Gigabyte GA-Z77-DS3H manuals (see below) note “The mSATA connector conforms to SATA 3Gb/s standard and can connect to a single solid-state drive.”