OpenWrt embedded multi 4G/WiFi and 5G router board
Quad-E4G is a universal platform offering wide possibilities thanks to multiple expansion slots
Quad-E4G offers extensive expansion options and decent performance. Three mini PCIe slots with both PCIe and USB buses, equipped with SIM slots, allows assembling a wireless router with multiple WiFi or 4G modules.
An additional M.2 B-key slot makes it possible to create high-performance 4G/5G access point with LTE Cat. 6+. Five Gigabit Ethernet interfaces with hardware offload support will serve many end devices without the need to worry about throughput.
OpenWrt support and USB-based system serial console make development extremely easy.
mini PCIe slots pinou
M.2/NGFF slot pinout
Pin headers
Pin headers (cont.)
MT7621A GPIO map
MT7621A GPIO map (cont.)
Parameter | Value |
---|---|
SOC | MediaTek MT7621A with 880 MHz dual-core (quad-thread) MIPS 1004Kc CPU |
RAM | 256 MB of DDR3 |
Flash | 32 MB of SPI NOR |
USB | 1× USB 2.0 Type-A 1× USB 2.0 micro Type-B for system serial console access (driver free) |
Storage | 1× microSD (SDXC) flash card reader |
Ethernet | 5× Gigabit Ethernet with ESD protection |
Expansion | 3× mini PCIe for 3/4G or WiFi module (PCIe ×1, USB 2.0, micro SIM, 3.3 + 5.0 V) 1× M.2/NGFF B-key 3042/3052 for 3/4/5G module (USB 3.0/2.0, mini + micro SIM) 1× mikroBUS™ socket (SPI and UART buses) |
Pin headers | 4× 8-pin + 1× 6-pin SIM card (2.54 mm pitch) 1× 4-pin I C bus (2.54 mm pitch) 1× 4-pin system serial console (2.54 mm pitch) 2× 4-pin UART2/UART3 serial console (2.54 mm pitch) 2× 4-pin 3.3 and 5.0 V power supply (2.54 mm pitch) 1× 10-pin SPI flash programming (2.54 mm pitch) |
Button | 3× push-button 1× power switch |
LED | 1× power (green) 5× LAN/WAN (green) 3× mini PCIe (green) 1× M.2/NGFF (green) 1× status (green) |
Other | RTC with CR2032 backup battery External hardware watchdog |
Software | U-Boot with web-based firmware recovery and dual-image support Officially supported in OpenWrt 19.07+ (Linux Kernel 4.14) |
Power supply | DC jack (5.4/2.0 mm) with lock for 24 V DC input Passive PoE input on LAN1 and optional 803.2af/at PoE module for WAN |
Mounting holes | ∅ 3 mm, 200 × 123 mm |
Dimensions | 210 × 140 × 16 mm |