DSOM-090M-I MT7621 System on Module

Model: DSOM-090M-I Category:

The DSOM-090M-I is a powerful System-on-Module (SoM) featuring the MT7621 chipset with eMMC up to 4GB, RAM up to 512MB, offering high performance, extensive connectivity options, and easy integration, enabling developers to create innovative IoT solutions with reduced time-to-market and enhanced functionality.

  • Size 65mm x 69mm x 2.5mm, featuring sufficient GPIO interfaces
  • eMMC up to 4GB; RAM up to 512MB
  • Supports OpenWRT OS
  • Supports wireless LAN standards: IEEE 802.11 a/b/g/n/ac
  • Frequency range: 2.4GHz~2.4835GHz or 5.18GHz~5.825GHz
  • Wireless rate: 300Mbps for 2.4GHz~2.4835GHz frequency range and 866.7Mbps for 5.18GHz~5.825GHz frequency range
  • The operating temperature range of the core module is 0~55 degrees
  • The product is stable and reliable and will operate normally through repeated High/Low Temperature Testing and Restarts Testing.


Quick View of DSOM-090M-I SoM

The DSOM-090M-I is an advanced System-on-Module (SoM) developed by Dusun, featuring the powerful MT7621A processor from MTK. With its dual-core MIPS1004Kc running at a maximum clock speed of 880MHz, this module is designed to excel in various applications, including internet service routers, wireless routers, home security gateways, NAS services, and switch control processors. Its high-performance capabilities and extensive connectivity options make it an ideal choice for developers seeking to create innovative IoT solutions.

The MT7621 System on Module is a versatile and powerful platform for developing networking and security solutions. The dual-core architecture enables efficient multitasking and handling of complex network traffic. It can be customized and configured to meet the specific needs of a wide range of applications, from small home networks to large enterprise deployments.

The main difference between the DSOM-090M-I and DSOM-090M-J lies in the storage capacity of the eMMC (embedded MultiMediaCard) used. The DSOM-090M-I is equipped with a 4GB eMMC, while the DSOM-090M-J features an 8GB eMMC. The SOM-090M-I with a 4GB eMMC may be a more cost-effective option compared to the DSOM-090M-J with an 8GB eMMC. If the application does not require a large amount of storage space, opting for the 4GB eMMC variant can help save costs.

Main chip block diagram of DSOM-090M-I MediaTek MT7621 SOM

Main Chip Block Diagram
DSOM-090M Main Chip Block Diagram
Core Board Block Diagram
DSOM-090M Core Board Block Diagram

Product Dimensions of DSOM-090M-I MediaTek MT7621 SOM

Dimensions of DSOM-090M
Dimensions of DSOM-090M Behind

Parameters and Interfaces of DSOM-090M-I MediaTek MT7621 SOM

CPU MIPS 1004Kc(800MHz), I-Cache, D-Cache 32KB, 32KB, L2 Cache 256KB
Memory eMMC 4GB
Wireless Standard IEEE 802.11 a/b/g/n/ac
Operating Frequency 2.4 GHz ~ 2.4835 GHz or 5.18GHz ~ 5.825GHz
Modulation IEEE 802.11b: CCK, DQPSK, DBPSK
80211g/a: 64-QAM,16-QAM, QPSK, BPSK
802.11n: 64-QAM,16-QAM, QPSK, BPSK
802.11ac: 256-QAM,64-QAM,16-QAM, QPSK, BPSK
Wireless Transmit Rate 802.11b: 1,2,5.5,11Mbps
802.11g: 6, 9, 12, 18, 24, 36, 48, 54Mbps
802.11n: MCS0~7, HT20 reach up to 72.2Mbps, HT40 reaches up to 150Mbps,
HT40 reach up to 300Mbps (2T2R)
802.11ac: VHT20 reach up to 173.3Mbps, VHT40 reach up to 400Mbps
VHT80 reaches up to 866.7Mbps
Wireless Encryption WEP/ TKIP/ WPA/ WPA2
Operation Voltage DC12V/1.5 ( Recommend)
Temperature Operating Temperature: 0° C ~85 °C
Storage Temperature: -40 °C ~85 °C
Humidity 10~90%(Non-condensing)
Barometric Pressure 76Kpa ~ 106Kpa
Size 38mm × 38mm
PCB Dimension 65mm x 69mm x 2.5mm

System on Module Application

intelligent network interface cards
iNICs (Intelligent Network Interface Cards)
nas devices
Network-Attached Storage Device
iot gateways
Home Security Gateway

Developer Resources of DSOM-090M-I

Carrier Board Development
[Carrier Board Datasheet] DSOM-090M MT7621 Key Components of Development Board Manual
[Carrier Board Schematic] DSOM-090M MT7621 Carrier Board Schematic
[Hardware Developmemt Guide] DSOM-090M MTK7621 Development Board Hardware Manual V1.1
[Flash Tool] tftp_server.rar

Model List

Category A ( In Stock)
Product Model RAM eMMC
DSOM-090M-I 512 MB 4 GB

Additional information

Product Type


Chip Platform


CPU Name






System support


Operating Temperature


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