Debian supports devices from QNAP's Turbo NAS devices that are based on the
Marvell Kirkwood platform.   This includes the following devices:
- QNAP TS-110, TS-112, TS-112P, TS-119, TS-119P+, TS-119P II, TS-120 and TS-121
- QNAP HS-210, TS-210, TS-212, TS-212-E, TS-212P, TS-219, TS-219P, TS-219P+, TS-219P II, TS-220 and TS-221
- QNAP TS-410, TS-410U, TS-412, TS-412U, TS-419P, TS-419P+, TS-419P II, TS-419U, TS-419U+, TS-420, TS-420U, TS-421 and TS-421U
Please be aware that Debian 10 was the last release to support these QNAP
devices.
Here is a table showing the differences between the supported devices:
|  | TS-110 | TS-112 | TS-112P | TS-119 | TS-119P+ | TS-119P II | TS-120 | TS-121 | 
| CPU model | 6281 | 6281 | 6282 | 6281 | 6282 | 6282 | 6282 | 6282 | 
| CPU speed | 800 MHz | 1.2 GHz | 1.6 GHz | 1.2 GHz | 1.6 GHz | 2.0 GHz | 1.6 GHz | 2.0 GHz | 
| RAM | 256 MB | 256 MB | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB | 1 GB | 
| Flash | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 
| HDD | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
| eSATA | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
| USB front | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
| USB back | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 
| USB 3.0 | none | none | 2 | none | none | none | 2 | 2 | 
| Ethernet | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
| Fan | 1 | 1 | 1 | no | 1 | 1 | 1 | 1 | 
|  | HS-210 | TS-210 | TS-212 | TS-212-E | TS-212P | TS-219 | TS-219P | TS-219P+ | TS-219P II | TS-220 | TS-221 | 
| CPU model | 6282 | 6281 | 6281 | 6282 | 6282 | 6281 | 6281 | 6282 | 6282 | 6282 | 6282 | 
| CPU speed | 1.6 GHz | 800 MHz | 1.2 GHz | 1.6 GHz | 1.6 GHz | 1.2 GHz | 1.2 GHz | 1.6 GHz | 2.0 GHz | 1.6 GHz | 2.0 GHz | 
| RAM | 512 MB | 256 MB | 256 MB | 256 MB | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB | 1 GB | 
| Flash | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 
| HDD | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 
| eSATA | no | no | no | no | no | no | 2 | 2 | 2 | 2 | 2 | 
| USB front | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
| USB back | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 
| USB 3.0 | 2 | none | none | 2 | 2 | none | none | none | none | 2 | 2 | 
| Ethernet | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
| Fan | none | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
|  | TS-410 | TS-410U | TS-412 | TS-412U | TS-419P | TS-419P+ | TS-419P II | 
| CPU model | 6281 | 6281 | 6281 | 6281 | 6281 | 6282 | 6282 | 
| CPU speed | 800 MHz | 800 MHz | 1.2 GHz | 1.2 GHz | 1.2 GHz | 1.6 GHz | 2.0 GHz | 
| RAM | 256 MB | 512 MB | 256 MB | 256 MB | 512 MB | 512 MB | 512 MB | 
| Flash | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 
| HDD | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 
| eSATA | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 
| USB front | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
| USB back | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 
| USB 3.0 | none | none | none | none | none | none | depends | 
| Ethernet | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 
| Fan | 1 | 3 | 1 | 3 | 1 | 1 | 1 | 
| LCD panel | no | no | no | no | yes | yes | yes | 
|  | TS-419U | TS-419U+ | TS-420 | TS-420U | TS-421 | TS-421U | 
| CPU model | 6281 | 6282 | 6282 | 6282 | 6282 | 6282 | 
| CPU speed | 1.2 GHz | 1.6 GHz | 1.6 GHz | 1.6 GHz | 2.0 GHz | 2.0 GHz | 
| RAM | 512 MB | 512 MB | 512 MB | 1 GB | 1 GB | 1 GB | 
| Flash | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB | 
| HDD | 4 | 4 | 4 | 4 | 4 | 4 | 
| eSATA | 2 | 2 | 2 | 2 | 2 | 2 | 
| USB front | 1 | 1 | 1 | 1 | 1 | 1 | 
| USB back | 3 | 3 | 3 | 3 | 3 | 3 | 
| USB 3.0 | none | none | 2 | 2 | 2 | 2 | 
| Ethernet | 2 | 2 | 2 | 2 | 2 | 2 | 
| Fan | 3 | 2 | 1 | 2 | 1 | 2 | 
| LCD panel | no | no | no | no | yes | no |