NHX6755-V02
Chipset CPU: 4x Cortex A7 1.5GHz
System Memory 256MB (supports up to 2GB)
NOR Flash 32MB
WLAN interfaces

– Two Internal 2x2 2.4G/5G Wi-Fi cores

* On-board 2x2 2.4GHz 802.11b/g/n, max 25dBm per chain, 

* On-board 2x2 5GHz 802.11a/n/ac, max 26dBm per chain

– 802.11ax, backward compatible to 802.11ac,802.11n, g, a, b

* Support all mandatory 802.11ax WFA features

* Eight simultaneous OFDMA users

– Two spatial streams

– 80 MHz bandwidth in 5 GHz band and 40 MHz in 2.4 GHz

– Support for new FCC channels (5.350 – 5.470, 5.490 – 5.725 GHz (Doppler Channels), 5.850 – 5.925 GHz as well as support for new 6 GHz bands (UNII-5 = 5.935-6.425 GHz, UNII-6/7/8 = 6.425-7.125 GHz)

– Maximum 5 GHz PHY rate: 1201 Mbps, TCP rate: 840 Mbps

– Maximum 2.4 GHz PHY rate: 574 Mbps, TCP rate: 400 Mbps

– Support of 256 Associated Clients

– Supports 128 min, 256 desired HW Encryption keys

– Supports GCI interface for BT/Wi-Fi co-existence

– DL MU-MIMO PPDU Receive. Operating as client STA, the NHX6755 can receive DL MU-MIMO and generate sounding feedback for APs that send up to four MU-MIMO spatial streams

Integrated Ethernet PHYs

5x GE

Peripheral Interfaces

1x SGMII/HSGMII

Supports One Ethernet SerDes PHY (SGMII) port supporting 10/100/1000/2500 Mbps only in Full Duplex mode

1x 2Lane PCIe2.0  

(2.5 GT/s) or Gen2 (5.0 GT/s) interface to support concurrent 802.11 wireless networking

–  High-speed SPI master interface with up to six chip selects, operating up to 100 MHz (programmable) 


–  Two UARTs 


–  I2C 


–  I2S 


–  PCM Interface 


–  Multicolor LED support 


–  External interrupt-configurable on any GPIO pins 


–  Timer/counters 


–  Watchdog timer 

Supports NAND/eMMC Flash Interface

1x USB2.0

1x USB3.1

External extension

–5G Sub-6GHz

* Supports HUAWEI MH5000-31

* Supports Quectel RG500Q (QCA SDX55)

–5G Sub-6GHz & mmWave

* Supports Quectel RG510 (QCA SDX55)

LED Supports POWER LED
Operating Voltage 3.3V, 5V (for PA), and 12V
Power Consumption TBD
Supported Operating System OpenWRT v18.x  Kernel 4.1
Certification RoHS Compliance
Environmental Temperature Operating : -20ºC to 70ºC , Storage : -40ºC to 90ºC
Environmental Humidity, non-condensing Operating : 5% to 95% , Storage : Max. 90%
Dimensions (W x D x H) 70mm*45mm*15mm
Other Features

Supports RangeBoost technology.

Support for LDPC in both TX and RX for increased wireless coverage.

Supports Digital Pre-Distortion (DPD), which reduces power consumption and improves Band Edge performance.

BITSWRT Test lab

In these LAN tests we will use JPerf to see how it behaves with multiple threads in the local network. NHX6755 has NAT hardware and its firmware implements this function.

LAN tests

With 100 threads we get a speed of 113 MB / s.NHX6755-TEST-1.png

With 250 threads we get a speed of 112 MB / s.NHX6755-TEST-2.png

With 500 threads we get a speed of 112 MB / s.NHX6755-TEST-3.png

With 750 threads we get a speed of 110 MB / s.NHX6755-TEST-4.png

With 1,000 threads we have a speed of 109MB / s.NHX6755-TEST-5.png

In the following table you can see the values we have obtained with different numbers of threads:

Threads LAN-LAN 100 250 500 750 1000
NHX6755 113 MB / s 112 MB / s 112 MB / s 110 MB / s 109 MB / s

BCM6755 BCM6750 BCM6752

Tests LAN-WAN

In this test we will simulate how it will behave with P2P since we will connect multiple cables from the LAN to the WAN. 

With 100 threads we get a speed of 113MB / s.NHX6755-TEST-6.png

With 250 threads we have a speed of 113MB / s.NHX6755-TEST-7.png

With 500 threads we get a speed of 111 MB / sNHX6755-TEST-8.png

With 750 threads we have a speed of 94.4MB / s.NHX6755-TEST-9.png

With 1000 threads we get a speed of 108 MB / s.NHX6755-TEST-10.png

In the following table you can see the values we have obtained with different numbers of threads:

Threads LAN-WAN 100 250 500 750 1000
NHX6755 113 MB / s 113 MB / s 111 MB / s 94.4 MB / s 108 MB / s

BCM6755 BCM6750 BCM6752

LAN-WLAN tests (wireless)

In all the tests, we have launched the Jperf client-server with 50 simultaneous TCP threads to verify the wireless speed, the server located on the wired LAN and the client on the WLAN.

NHX6755 : 2.4GHz band test

First we start with the 2.4GHz band where we can get up to 574Mbps theoretical with this wireless router. Here you have the results obtained with the JPerf client-server with 50 concurrent TCP threads, and a comparison with all the Wi-Fi cards we have tested with this router.

NHX6755 2.4GHz Adjoining room Downstairs room Storage room
Intel Dual-band Wireless AC 7265 Synchronization: 300Mbps Speed: 19.4MB / s Synchronization: 270Mbps Speed: 11.4MB / s Synchronization: 162Mbps Speed: 4.9MB / s
TRENDnet TEW-805UB Synchronization: 360Mbps Speed: 21.3MB / s Synchronization: 180Mbps Speed: 11.1MB / s Synchronization: 150Mbps Speed: 4.2MB / s
Linksys WUSB6300 Synchronization: 400Mbps Speed: 21.9MB / s Synchronization: 270Mbps Speed: 12.6MB / s Synchronization: 150Mbps Speed: 4.5MB / s
TP-LINK Archer T4U Synchronization: 400Mbps Speed: 18.3MB / s Synchronization: 270Mbps Speed: 9.7MB / s Synchronization: 150Mbps Speed: 5.5MB / s
D-Link DWA-182 Synchronization: 400Mbps Speed: 19MB / s Synchronization: 300Mbps Speed: 7.0MB / s Synchronization: 180Mbps Speed: 8.8MB / s
Edimax EW-7811USC Synchronization: 200Mbps Speed: 14.6MB / s Synchronization: 180Mbps Speed: 9.5MB / s Synchronization: 150Mbps Speed: 8.7MB / s
Edimax EW-7833UAC Synchronization: 400Mbps Speed: 27.6MB / s Synchronization: 400Mbps Speed: 17.9MB / s Synchronization: 400Mbps Speed: 15.9MB / s
ASUS USB-AC56 Synchronization: 400Mbps Speed: 28.4MB / s Synchronization: 300Mbps Speed: 8.6MB / s Synchronization: 400Mbps Speed: 14.9MB / s
ASUS PCE-AX58BT

Synchrony: 300Mbps

Speed: 39 MB / s

Synchrony: 135 Mbps

Speed: 13.8 MB / s

Synchrony: 300Mbps

Speed: 15,1 MB / s

BCM6755 BCM6750 BCM6752

NHX6755 : 5 GHz band test

Now let's check the wireless performance that we have 5 GHz band with low channels, in fact, the channel used in the tests is channel 40. In this band we have available AX Wi-Fi technology and the 80MHz channel width activated, since This model does not support 160MHz channel widths, so we cannot squeeze the maximum Wi-Fi cards that support this channel width.

NHX6755 5GHz Adjoining room Downstairs room Storage room
Intel Dual-band Wireless AC 7265 Synchronization: 867Mbps Speed: 38.9MB / s Synchronization: 65Mbps Speed: 4.9MB / s Synchronization: 144Mbps Speed: 4.3 MB / s
TRENDnet TEW-805UB Synchronization: 867Mbps Speed: 37.9MB / s Synchronization: 130Mbps Speed: 8.9MB / s Synchronization: 130Mbps Speed: 2.9MB / s
Linksys WUSB6300 Synchronization: 867Mbps Speed: 41.3MB / s Synchronization: 292.5Mbps Speed: 8.2MB / s Synchronization: 292.5Mbps Speed: 3.4MB / s
TP-LINK Archer T4U Synchronization: 867Mbps Speed: 26.0MB / s Synchronization: 292.5Mbps Speed: 7.9MB / s Synchronization: 292.5Mbps Speed: 4.0MB / s
D-Link DWA-182 Synchronization: 780Mbps Speed: 36.1MB / s Synchronization: 292.5Mbps Speed: 10.6MB / s Synchronization: 292.5Mbps Speed: 5.5MB / s
Edimax EW-7811USC Synchronization: 433Mbps Speed: 28.1MB / s Synchronization: 97.5Mbps Speed: 4.9MB / s Synchronization: 97.5Mbps Speed: 1.5MB / s
Edimax EW-7833UAC Synchronization: 867Mbps Speed: 36.9MB / s Synchronization: 867Mbps Speed: 17.7MB / s Synchronization: 867Mbps Speed: 13MB / s
ASUS USB-AC56 Synchronization: 867Mbps Speed: 35.9MB / s Synchronization: 325Mbps Speed: 12.7MB / s Synchronization: 390Mbps Speed: 13.2MB / s
ASUS PCE-AX58BT

Synchrony: 721 Mbps

Speed: 60,5 MB / s

Synchrony: 136Mbps

Speed: 9.0MB / s

Synchrony: 136Mbps

Speed: 13 MB / s

BCM6755 BCM6750 BCM6752

NHX6755 : USB 3.0 tests

USB tests are like what we have been doing regularly. We will verify the speed of reading and writing in NTFS format since we will copy files larger than 4GB (videos in high definition). We will perform the measurements with the Samba server that incorporates the router and also via FTP. All tests will be carried out with an SSD and a USB 3.0 housing to always obtain the maximum possible performance.

The NHX6755 router allows us to configure the ports in USB 3.0 mode to obtain the maximum possible Speed, and also in USB 2.0 mode to avoid interference in the 2.4GHz band. We have configured the USB 3.0 port as USB 3.0 and the USB 2.0 port as a USB 2.0 port to see the performance differences

Samba on USB 3.0 port

  • NTFS-> Read: 113 MB / s; Write: 66 MB / s.

FTP on USB 3.0 port

  • NTFS-> Reading: 118.7 MB / s; Write: 81.5 MB / s.

Samba on USB 2.0 port

  • NTFS-> Read: 37.5 MB / s; Write: 36.7 MB / s.

FTP on USB 2.0 port

  • NTFS-> Read: 38.9 MB / s; Write: 38 MB / s.

DLNA on USB 2.0 port 

NHX6755 Reading speed Writing speed
USB 3.0: Samba 113 MB / s 66 MB / s
USB 3.0: FTP 118.7 MB / s 81.5 MB / s
USB 2.0: Samba 37.5 MB / s 36.7 MB / s
USB 2.0: FTP 38.9 MB / s 38 MB / s

BCM6755 BCM6750 BCM6752

Wireless video transmission Wi-Fi5 Wi-Fi 6  OEM  ODM  JDM

MU-MIMO AP CPE   QSDK openwrt

CONTACT  bitswrt

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