Storage Space – What You Need to Know!
The K3 Pico ITX board is a high-end SBC or Mini PC, but it lacks a microSD card slot for booting images, which could be a drawback for those who like to switch between operating systems. On the brighter side, it comes with GRUB (GNU GRand Unified Bootloader) with Multi-boot support with a customizable boot menu. Also, depending on the device configuration you got an onboard Universal Flash Storage (UFS) up to 256GB, offering much faster and more efficient performance than eMMC.
Running the df (disk free) command
tzah@home-spacemit:~$ df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 1.6G 2.0M 1.6G 1% /run
/dev/sda3 117G 6.9G 104G 7% /
tmpfs 7.8G 400K 7.8G 1% /dev/shm
tmpfs 7.8G 44K 7.8G 1% /tmp
none 1.0M 0 1.0M 0% /run/credentials/systemd-journald.service
none 1.0M 0 1.0M 0% /run/credentials/systemd-resolved.service
/dev/sda2 224M 59M 147M 29% /boot
none 1.0M 0 1.0M 0% /run/credentials/serial-getty@ttyS0.service
tmpfs 1.6G 108K 1.6G 1% /run/user/1000
/dev/sda1 256M 0 256M 0% /run/media/tzah/ESP
How much internal storage comes with the 16GB RAM model?
/dev/sda>>>is our UFS (Universal Flash Storage)
- It contains three partitions:
| Partition | Size | Purpose |
|---|---|---|
/dev/sda1 | 256 MB | EFI System Partition |
/dev/sda2 | 256 MB | Boot partition |
/dev/sda3 | 118.8 GB | Root filesystem |
⭐ 128 GB total capacity!
Disk /dev/sda: 119.27 GiB, 128068878336 bytes
Disk model: TY7B-128
Sector size: 4096 bytes
The disk model TY7B‑128 literally indicates:
- 128 → 128 GB SSD
- The reported size: 119.27 GiB = 128 GB (GiB vs GB difference).
How much space do we have available, and how much is left to use?
| Category | Size |
|---|---|
| Total size | 128 GB |
| Used by OS | 6.9 GB |
| Free space available | ~104 GB |
| Boot partitions | 256 MB + 256 MB |
| Root filesystem | 118.8 GB |



