Netgear XR300

abgn+ac (AC1750)
Nighthawk Pro Gaming Router
Homepage	Product page
Support	Support page
Wikipedia	Netgear
WikiDevi.wi-cat.ru	Netgear XR300
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Status Unknown
Tomato any flavor	Supported
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	Netgear XR300
FCC ID	PY316200342
IC ID	U12H332T78
Board ID	U12H332T78
Type	wireless router
Series	Nighthawk
CPU1 Y	Broadcom BCM4708C0
CPU1 Type	ARM Cortex-A9
CPU1 Speed	1.0 GHz ( 2 cores )
Flash1 Chip	Brand? Model?
Flash1 Size	128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Size	512 MiB 536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br />
RAM1 Chip	Brand? Model?
nvram Size	128K
ETH chip1	Broadcom BCM4708C0
Switch	Broadcom BCM4708C0
Ethernet Port Count	1-1GbE-WAN 4-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: none specified
Stock FW OS	Linux DumaOS
Expansion IF types	USB 3.0
USB ports	1
USB Hub Compatible	Untested
Power	12 VDC, 2.5 A
Connector type	barrel
Other
Manuf/OEM/ODM	Foxconn U12H332 T78
3rd Party Firmware Support	FreshTomato • (List | DLs)
Retail
FCC approval date	28 October 2016
(Est.) release date	14 April 2019
(Est.) initial retail price (in USD):	$200
ASIN	B07PGZH7Q4
Radio 1
Chip1	Broadcom BCM4331
Wireless interface OUI	none specified
Antenna Connector Type	none specified
MIMO status	3x3:3
Wireless Standard	IEEE 802.11b/g/n
802.11n	up to 450 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
WiFi Operating Frequency	2.4 GHz
Radio cor_rev	29
Radio 2
Chip1	Broadcom BCM4360
Wireless interface OUI	none specified
Antenna Connector Type	none specified
MIMO status	3x3:3
Wireless Standard	IEEE 802.11a/n/ac
802.11ac	up to 1300 Mbps
802.11n	up to 450 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	5 GHz
Radio cor_rev	40
FCC ID Netgear R6400 v2 U12H332T20 PY316200342 Netgear R6400 v2 U12H332T30 PY316200342 Netgear R6700 v3 PY316200342

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

For a list of all currently documented Netgear devices with specifications, see Netgear.

• 450 Mbps - 3SS 2.4GHz 802.11n (40MHz chan.),

• 1300 Mbps - 3SS 5GHz 802.11ac (80MHz chan.) = AC1750 class

Overview

"U12H332T78" is in the header of the firmware file that is available for download.

Broadcom chips are just a guess, for now. This device is presumed to use BCM4360 + BCM4331 radios like the Netgear R6700v3 / Netgear R6400 v2 since no MU-MIMO or 256-QAM support is claimed in any currently available PR.

See also: List of Netgear Nighthawk Products

Links of Interest

Datasheet

Flashing

Flashing Tomato

Support added

Flashing ExpressVPN

Compatible with Netgear Nighthawk R6700v3 firmware

JTAG-Serial Info

Serial

Serial Pinouts

This router had a 4 pin header already soldered onto it and the pins were clearly labeled on the printed circuit board's silkscreen.

1. +V 2. Ground 3. Transmit 4. Receive The Baud rate is 115,200.