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Arris SURFboard W31

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Arris SURFboard W31 (mAX AX11000)

FCC approval date: 26 July 2018
Country of manuf.: China
Series: AX11000

Type: wireless router, wireless system


Power: 12 VDC, 3 A
Connector type: barrel

CPU1: Broadcom BCM4908 (1.8 GHz, 4 cores)
FLA1: 256 MiB
268,435,456 B
2,097,152 Kib
262,144 KiB
2,048 Mib
0.25 GiB
(Macronix NAND)
RAM1: 1 GiB
1,024 MiB
1,073,741,824 B
8,388,608 Kib
1,048,576 KiB
8,192 Mib
(Micron DDR3)

Expansion IFs: USB 3.0
USB ports: 2

WI1 chip1: Broadcom BCM43684
WI1 chip2: Broadcom BCM43684
WI1 802dot11 protocols: an+ac+ax
WI1 MIMO config: 4x4:4
WI1 antenna connector: none
WI2 chip1: Broadcom BCM43684
WI2 802dot11 protocols: bgn+ax
WI2 MIMO config: 4x4:4
WI2 antenna connector: none

ETH chip1: Broadcom BCM4908
Switch: Broadcom BCM4908
LAN speed: 10/100/1000
LAN ports: 2
WAN speed: 10/100/1000
WAN ports: 1


Flags: Bluetooth, 256QAM

802dot11 OUI: none specified

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

SURFboard mAX AX11000 Whole-Home Wi-Fi Router


The tagline comes from this list of UL Certified products from Arris.

The 2.4GHz radio doubles as a receive-only 1x1:1 5GHz radio.

Most useful FCC documents are under short-term confidentiality until 01/22/2019.

This device is assumed to use Broadcom chips because of this quote from Larry Robinson, President, ARRIS CPE Products, "ARRIS is partnering with Broadcom to bring 802.11ax technology to the latest generation of Telco and Cable operator gateways."

Although this device may not be used by telephone companies and cable operators, it seems likely that Arris would focus on one chipset brand at least until 802.11ax technology matures.