China Suppliers NK03 Series Rackmount Network Appliance - 1U/2U Intel Atom C3000, 30Gbps Throughput, Multiple Ports Factory Direct
Product Features
The processor features an integrated SoC design, bringing efficient intelligence to the network edge.
SKU of C3558R/C3758(R)/C3958 from 4 to 16 Cores, with TDP ranging from 17 to 31W, suitable for power-optimized network security devices.

Comparing to C236 Chipset platform, NK03 offers similar performance but more consistent quality.
Two hardware watchdogs are designed, one of which is via super I/O, the other one is via MCU to achieve bypass control.

eMMC/mSATA/SATA/M.2 SATA, with IoT/AI/dual-SIM cards, 4G/5G LTE, Wi-Fi 5/6 modules, etc.
Commercial-grade, wider temperature range.
1U/2U rackmount comes with one power button, and configurations of single/redundant PSU.
Technical Specifications
| Category | Factor | Description | |||
| Processor | Processor Number | C3558R | C3758 | C3758R | C3958 |
| Total Cores | 4 | 8 | 8 | 16 | |
| Total Threads | 4 | 8 | 8 | 16 | |
| Base Frequency | 2.40 GHz | 2.20 GHz | 2.40 GHz | 2.00 GHz | |
| Cache | 8 MB | 16 MB | 16 MB | 16 MB | |
| TDP | 17 W | 25 W | 26 W | 31 W | |
| Memory | Speed | 2400 MT/s | 2400 MT/s | 2400 MT/s | 2400 MT/s |
| Capacity | 4 GB / 8 GB / 16 GB / 32 GB / 64 GB | ||||
| Socket | 2 × DDR4 memory down | ||||
| ECC Support | yes | ||||
| Networking | Controller | 2 × 88E6193 | |||
| 16 × RJ45, 2 × SFP, 4 × SFP+ | ✔ | ||||
| 16 × RJ45, 6 × SFP+ | ✔ | ✔ | ✔ | ||
| Bypass | 4 segments | 8 ports ( optional ) | ||||
| Storage | eMMC | up to 64 GB ( optional ) | |||
| SATA (2.5"/3.5" HDD/SSD) | 1 | 2 | 2 | 2 | |
| mSATA | 1 × mSATA slot ( SATA3.0 ) | ||||
| M.2 | support M2. M-Key | ||||
| Expansion | PCIe | 1 × PCIe3.0*4, 1 × PCIe3.0*8 | |||
| NIC | up to 4 | ||||
| I/O | Digital I/O | 8 × digital I/O ( 4 IN 4 OUT via SIO/BMC ) | |||
| Super I/O | NCT5581D ( address 4E ), 4 pin header ( UART ) | ||||
| Console | 1 × RJ45 ( standard CISCO ) | ||||
| USB | 2 × USB2.0 | ||||
| Motherboard | LED | LINK/ACT, GE_LINK ( network interface ) POWER/ALARM/STATUS/HA/BYPASS | |||
| TPM | built-in 20 pin header | ||||
| BMC | on-board BMC module | ||||
| Beep | SIO beep, BMC beep | ||||
| Power | Single Power | ✔ | ✔ | ✔ | ✔ |
| Dual Power | |||||
| Watts | 150 W | ||||
| Redundant ( 1 + 1 AC ) | 150 W × 2 ( with mute button ) | ||||
| Machine | Dimension ( W × D × H ) | 440mm × 450mm × 44mm ( 1U ) 440mm × 600mm × 88mm ( 2U ) |
|||
| Button | power button, BYPASS button ( optional ) | ||||
| Cooling | 1 × CPU FAN, 2 × SYS FAN | ||||
| Grounding | yes | ||||
| Environment | Operating Condition | 0~40℃ @ 5~90% RH non-condensing | |||
| Non-Operating Condition | -40~70℃ @ 5~90% RH non-condensing | ||||
Mechanical Layout

FRONT VIEW

REAR VIEW
Ordering Information
| Model | CPU | Memory | LAN Ports | Bypass | Mgt. | Console | NICs | USB | HDD/SSD | mSATA | PSU | Size |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NK03 | C3558R / C3958 | 32GB* | 16 × RJ45, 6 × SFP+ | 4* | 2* | 1 | 2* | 2 | optional | 256GB* | 150W | 2U |
| NK03HR | C3758 / C3958 | 32GB* | 16 × RJ45, 6 × SFP+ | 4* | 2* | 1 | 2* | 2 | optional | 256GB* | 150W, 150W × 2 | 1U / 2U |
| NK03HR | C3558R | 8GB | 16 × RJ45, 2 × SFP+, 4 × SFP+ | 4* | 2* | 1 | 2* | 2 | optional | 256GB* | 150W, 150W × 2 | 2U |
* indicates the maximum capability that exact model supporting, configurations may vary depending on on-board components, such as DDR4 UDIMM/RDIMM slots, NIC modules, and 2.5’’ or 3.5’’ HDD/SSD brackets, etc.
Frequently Asked Questions (FAQ)
What processors are used in this product?
The device features an integrated SoC design and utilizes processors such as the C3558R, C3758, C3758R, and C3958, ranging from 4 to 16 cores.
What is the TDP range for these network security devices?
The Thermal Design Power (TDP) ranges from 17W to 31W, making these devices highly suitable for power-optimized network security applications.
What memory configurations are supported?
The system supports 4 GB to 64 GB of DDR4 memory at 2400 MT/s via 2 DDR4 memory down sockets, and it includes ECC support for data integrity.
Does the device support hardware bypass control?
Yes, it supports up to 4 segments (8 ports optional) for bypass control. It features two hardware watchdogs, utilizing both super I/O and MCU to achieve reliable bypass functionality.
What are the expansion and connectivity options available?
The device is highly configurable, offering eMMC, mSATA, SATA, and M.2 SATA storage options. It also supports expansion via IoT/AI/dual-SIM cards, 4G/5G LTE, Wi-Fi 5/6 modules, and up to 4 NICs.
What power supply configurations are offered?
The 1U and 2U rackmount models come with a 150W power capacity and support both single power supply and redundant (1+1 AC) power supply configurations.






