
MB300
Part of the MB series
Multiregional RAIN RFID module with +27 dBm and 250 tags/s

The MB300 is a 32 x 36 x 4 mm RAIN RFID module on an Impinj Ex10 chip. Software sets the band within 865 to 928 MHz, so one hardware variant serves many regions. Up to +27 dBm, -75 dBm sensitivity, 250 tags/s.
You make equipment and want to add RFID to your own device, such as a handheld, a smart shelf or a refrigerator. A 32 x 36 x 4 mm module, +27 dBm, 250 tags/s.
Need more range or 700 tags/s? The MB500 reaches +30 dBm. Need a finished reader to install? Choose the EM300.
Features
- Four MMCX antenna ports
- Programmable output power, up to +27 dBm
- Dual-core 32-bit MCU, 240 MHz, 8 MB flash, 4 MB PSRAM
- USB, SPI, I2C, UART and 5 GPIOs
- Wi-Fi 802.11n and BLE 5 on board
- +5 VDC supply; FCC and Anatel certified
Applications
- Handheld readers and sleds
- RFID reading stations
- Smart shelves and cabinets
- Connected refrigerators
- Fixed RFID readers
Technical specifications
| RFID standard | RAIN RFID SOM module, EPCglobal UHF Class 1 Gen 2 / ISO 18000-63 |
|---|---|
| Frequency band | Worldwide (FCC, ETSI, Anatel, etc.), configurable via software, 865-928 MHz |
| Max. RF output power | +27 dBm |
| Output power range | Programmable RFID output power from 0 dBm to +33 dBm (MB700) |
| RX sensitivity | -75 dBm (max) |
| Read rate | up to 250 tags/s |
| Read range | Up to 20 meters or more, depending on antenna and tag configuration |
| RFID chipset | Impinj Ex10 RAIN RFID reader chip |
| GEN2X | Impinj GEN2X support |
| Antenna ports | 4 × MMCX |
|---|---|
| RF connector | MMCX connectors |
| Connectivity | USB, SPI, I²C, UART, Wi-Fi, BLE |
|---|---|
| Wi-Fi | Wi-Fi 802.11n, 2.4 GHz, 150 Mb/s |
| Bluetooth | BLE 5 |
| GPIO | 5 × GPIO |
| Interfaces | 1 × USB; 1 × SPI; 1 × I²C; 1 × UART; 5 × GPIO |
| Processor | Dual-core 32-bit microcontroller up to 240 MHz |
| Memory | 8 MB Flash; 4 MB PSRAM; 512 KB SRAM; 384 KB ROM |
| Power source | +5 VDC |
|---|---|
| Max. consumption | Up to 9 W peak (family maximum, at +33 dBm) |
| Dimensions | 32 x 36 x 4 mm |
|---|---|
| Certifications | FCC and Anatel |
Questions we hear
Does it work in any country?
Software sets the band within 865 to 928 MHz, so one hardware version serves many regions. It is FCC and Anatel certified.
What do I need to run it?
A 5 V supply and antennas on its four MMCX ports. It has its own dual-core MCU, or you can drive it from a host. Identix does not supply tags.


