Compex WPJ428

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Compex WPJ428
Availability: sampling

FCC approval date: 20 July 2017
Country of manuf.: China

Type: wireless embedded board


Power: 12-24 VDC, ? A
Connector type: barrel
PoE tag: 802.3af, standard

CPU1: Qualcomm IPQ4028 (628 MHz, 4 cores)
FLA1: 16 MiB16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br /> (Macronix Model?)
FLA2: 128 MiB134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (Brand? Model?)
RAM1: 256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (Micron Model?)

Expansion IFs: USB 2.0, USB 3.0, Mini PCIe (NGFF)
Mini PCIe slots: 1
USB ports: 2
JTAG: yes
Serial: yes

WI1 chip1: Qualcomm IPQ4028
WI1 802dot11 protocols: an+ac
WI1 MIMO config: 2x2:2
WI1 antenna connector: U.FL
WI2 chip1: Qualcomm IPQ4028
WI2 802dot11 protocols: bgn
WI2 MIMO config: 2x2:2
WI2 antenna connector: U.FL

ETH chip1: Qualcomm IPQ4028
ETH chip2: Qualcomm Atheros QCA8327
LAN speed: 1GbE
LAN ports: 2


Stock bootloader: Compex bootloader

Stock FW OS: CompexWRT

TPFirmware supported: OpenWrt • (List | Dev | DLs)

Flags: MU-MIMO, 2x SIM Card slot

802dot11 OUI: none specified

For a list of all currently documented Qualcomm chipsets with specifications, see Qualcomm.

802.11ac 2×2 Dual Band Wave 2 Wireless Embedded Board

Product page

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Product Key Features

  • Qualcomm IPQ4028 @600MHz Quad-core ARM (Cortex-A7) CPU
  • 256MB RAM (System Memory), 128MB (NAND Flash)/16MB (NOR Flash)
  • 802.11ac compliant & backward compatible with 802.11b/g/n
  • 2x2 On-board 5GHz radio with up to 867Mbps physical data rate
  • 2x2 On-board 2.4GHz radio with up to 300Mbps physical data rate
  • On-board 2.4GHz max 20dBm output power (per chain)
  • On-board 5GHz max 17dBm output power (per chain)
  • 2x Gigabit Ethernet LAN RJ45 port with Auto-MDIX
  • 802.3af/at PoE and Passive PoE (range 36-56V)
  • Dual SIM Card Holder


  • 802.11n/ac Access Point
  • Point-to-Point High Capacity Wireless Bridge
  • Point-to-MultiPoint High Capacity Wireless Bridge
  • Wireless Customer-Premises Equipment (CPE)
  • Wireless Base Station

Purchase Sample

Compex System Sample Store

Ordering Configuration

Item Cod      Chipset	               Board Information
WPJ428-TE     IPQ4028    2x2 MU-MIMO 802.11ac 2.4/5GHz SoC radio with NGFF slot


CompexEmbedded Boards
Qualcomm IPQ4028 @600MHz Quad-core ARM (Cortex-A7) CPU
128MB RAM (System Memory), 128MB (NAND Flash)/32MB (NOR Flash)
2x2 On-board 2.4/5GHz 802.11ac (Wave 2) radio
5x Gigabit Ethernet LAN (RJ45) port with Auto-MDIX
1x USB 2.0, 1x USB 3.0 Host ports
32 MB of SPI NOR flash (MX25L25635E)
128 MB of SPI NAND flash (GD5F1GQ4UCY1G)
256 MB of RAM