The Kernun products are shipped as hardware appliances. The Kernun hardware comes in the following variants: SOHO, Pro, Enterprise and Enterprise Plus.
Not all combinations of Kernun products and hardware are eligible. For instance, Kernun Mail Access is available in the SOHO and Enterprise variants. For more information, see the following table, which lists the valid combinations.
| SOHO | Pro | Enterprise | Enterprise Plus | ||
| Kernun Net Access | No | Yes | Yes | Yes | Yes |
| Kernun Mail Access | No | Yes | No | Yes | No |
| Kernun VPN Access | No | Yes | No | Yes | No |
| Kernun Office Access | No | Yes | No | Yes | No |
| Kernun Web Access | No | Yes | No | Yes | No |
The individual hardware variants are briefly characterized as follows:
The basic 1U rack server hardware with low profile (low depth), low performance, no management and no redundancy options. Recommended for networks with up to 50 users and a 10-Mbps or slower upstream line.
An advanced 1U rack server with full depth, advanced performance, a management option and no redundancy options. It is suitable for networks with up to 150 users, connected with a 50-Mbps line at the most.
A high-performance 2U rack server, featuring all the available management and redundancy options. This variant is designed for networks with up to 500 users and a 500-Mbps upstream line.
An even better-performing 2U rack server hardware, again with all the available management and redundancy options. Designed for very demanding users, it fits into environments with hundreds or thousands of users and a 1-Gbps connection to the outside world.
The following table gives a summary of the parameters of individual hardware variants:
| SOHO | Pro | Enterprise | Enterprise Plus | ||
| Rack chassis | N/A | 1U | 1U | 2U | 2U |
| Height (cm) | 3.00 | 4.26 | 4.24 | 8.64 | 8.64 |
| Width (cm) | 29.00 | 44.70 | 42.63 | 44.43 | 44.43 |
| Depth (cm) | 17.00 | 38.70 | 66.04 | 74.40 | 74.40 |
| Weight (kg) | 0.9 | 10.5 | 13.45 | 23.00 | 23.00 |
| Processor freq. | 500 MHz | 2.0 GHz | 1.86 GHz | 2.0 GHz | 3.0 GHz |
| Processor model | single/32bit | single/64bit | dual/64bit | quad/64bit | quad/64bit |
| Memory | 512 MB | 1 GB | 2 GB | 4 GB | 8 GB |
| Disk size | 2 GB | 160 GB | 250 GB | 300 GB | 600 GB |
| Disk model | CF card | SATA | SATA | SAS | SAS |
| Hot-plug disks | No | No | No | Yes | Yes |
| RAID | N/A | N/A | N/A | RAID 1 | RAID 10 |
| Power supply | 24 W | 400 W | 400 W | 750 W | 750 W |
| Hot-plug power | No | No | No | Yes | Yes |
| Power redundancy | No | No | No | Yes | Yes |
| Max eth. ports | 8 | 4 | 6 | 14 | 14 |
| HW encr. accelerator | Optional | No | No | Optional | Optional |
| Remote mgmt | No | No | Yes | Yes | Yes |