Digital Signage Player
SI-121-N
Intel® Core® Processor N-Series (Twin Lake) Fanless Signage Player with Intel® Graphics built-in and One HDMI 2.0b
- iSMART intelligent energy-saving technology - enables power on/off scheduling and power resume functions
- Intel® Core® Processor N-Series (Twin Lake)
- 1x HDMI 2.0b with independent audio output
- HDMI-CEC and display monitoring functions
- Supports PDPC (Peripheral Device Power Control) function
- Supports OOB function via I210IT LAN port (optional)
- 1x DDR5-4800 SO-DIMM, Max. 32GB
- 1x M.2 M-Key (2280) for storage
- 1x M.2 B-Key (3052) for 5G/LTE
- 1x Nano SIM slot
- TPM 2.0 and watchdog timer
- Industrial-grade robust, fanless and compact design
The SI-121-N is a compact fanless signage player with a slim 22.5 mm profile, designed to deliver dependable performance and simplified integration for space-constrained installations and entry-level display applications.

Powered by Intel® Core™ Processor N-series (Twin Lake), the SI-121-N offers efficient processing and smooth content playback via HDMI output, making it well-suited for retail, hospitality, and public information displays. Its industrial-grade, fanless, and space-saving design ensures silent operation, reduced maintenance, and reliable 24/7 performance.
To simplify system management, the platform supports iSMART energy-saving technology, HDMI-CEC, and display monitoring functions, enabling intelligent control and efficient operation. Flexible expansion options, including M.2 storage and optional 5G/LTE connectivity, further enhance deployment versatility. Combining essential performance, reliability, and ease of integration, the robust SI-121-N provides a practical and accessible solution for scalable digital signage deployments.
SI-121-N KEY FEATURES:
- Intel® Core™ Processor N-series (Twin Lake): Efficient performance for smooth digital signage playback
- Single HDMI Output with 4K Support: Delivers clear, high-quality visual content
- Compact Fanless Design: Silent operation with enhanced reliability and low maintenance
- Smart Power & Display Control: Supports iSMART, HDMI-CEC, and display monitoring for easy management
- Flexible Expansion Options: M.2 storage and optional 5G/LTE connectivity for versatile deployments
| System Mainboard | MBD121 |
| CPU | Intel® N-Series (Twin Lake) Processors |
| CPU Socket | FCBGA1264 |
| Chipset | Integrated |
| Memory | 1x SO-DIMM DDR5 4800 MHz, Max. 32GB |
| Graphics | Intel® Graphics |
| LAN | 1x 1.0 Gb LAN with optional OOB/In-band optional function support |
| Expansion Slots | 1x M.2 M-key (2280) for storage 1x M.2 B-key (3052) for 5G/LTE 1x SIM card slot |
| I/O Interface | 1 x HDMI 2.0b 2x USB 3.2 (with 1x PDPC function included) 1x RJ45 for Gigabit LAN 1x RJ45 for RS-232 serial port 1x Audio connector for Line-out 1x Power Button 1x Power Jack (+12V DC) 2x LED for Power & Storage |
| Auto Control and Monitoring | Watchdog Timer: 256 segments, 0, 1, 2…255 (sec / min) |
| Power Requirement | +12V DC |
| Construction | Aluminum + SGCC |
| Weight | 1.0 kg (2.2 lbs) |
| Chassis Color | Black & White |
| Storage | 1x M.2 M-key (2280) (NVMe / SATA) |
| Power Supply | 50W power adaptor |
| Mounting | Standard system bracket |
| Dimensions | 170mm(W) x 123mm(D) x 22.5mm(H) |
| Operating Temperature | 0°C~ 45°C (32°F~113°F) |
| Storage Temperature | -20° ~ 80°C (-4°F~176°F) |
| Relative Humidity | 10%~90% (non-condensing) |
| Vibration | 1Grms/3~500Hz/ Random operation |
| Certification | CE, FCC Class B, cULus |
| Operating System | Windows 11 IoT Enterprise LTSC Linux Ubuntu 64-bit |
| SI-121-N355TB | Intel® Core™ 3 Processor N355, 1x 8GB DDR5 5600 SO-DIMM memory, 1x M.2 256GB and 50W power adapter, with TPM, OOB function |
| SI-121-N150TB | Intel® Processor N150, 1x 8GB DDR5 5600 SO-DIMM memory, 1x M.2 256GB and 50W power adapter, with TPM, OOB function |
| SI-121-N355T | Intel® Core™ 3 Processor N355, 1x 8GB DDR5 5600 SO-DIMM memory, 1x M.2 256GB and 50W power adapter, with TPM |
| SI-121-N150T | Intel® Processor N150, 1x 8GB DDR5 5600 SO-DIMM memory, 1x M.2 256GB and 50W power adapter, with TPM |
| SI-121-N355 | Intel® Core™ 3 Processor N355, 1x 8GB DDR5 5600 SO-DIMM memory, 1x M.2 256GB and 50W power adapter |
| SI-121-N150 | Intel® Processor N150, 1x 8GB DDR5 5600 SO-DIMM memory, 1x M.2 256GB and 50W power adapter |
| SI-121-N355B | Intel® Core™ 3 Processor N355, 1x 8GB DDR5 5600 SO-DIMM memory, 1x M.2 256GB and 50W power adapter, with OOB function |
| SI-121-N150B | Intel® Processor N150, 1x 8GB DDR5 5600 SO-DIMM memory, 1x M.2 256GB and 50W power adapter, with OOB function |
| DATASHEETS | SI-121-N |
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