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Wireless Reviews

AirStation Extreme AC 1750 Gigabit Dual Band Wireless Router
At a glance
ProductBuffalo Technology AirStation Extreme AC 1750 Gigabit Dual Band Wireless Router (WZR-1750DHP)   [Website]
SummarySecond-gen Broadcom CPU based AC1750 class router with USB 2.0 & 3.0 ports and good storage sharing
Pros• Fast FAT32 storage throughput
• USB 3.0 port
• Easy QoS and Web filtering controls
Cons• NTFS USB format not supported
• 5 GHz performance lags

Typical Price: $120  Buy From Amazon


Buffalo sent us both its AC class routers to take a look at, the WZR-1750DHP and WZR-1166DHP. First up is a look at the Broadcom-based WZR-1750DHP.

The WZR-1750DHP has plenty of lights and ports with four Gigabit Ethernet LAN, one WAN and a USB 2.0 port and USB 3.0 port. Buttons include power, mode, and AP/bridge, but No wireless on/off.

Buffalo WZR-1750DHP front panel callouts

Buffalo WZR-1750DHP front panel callouts

The front panel "Buffalo" and rear-panel USB LEDs use color and blink codes, so keep the manual handy. The front and rear callouts can be seen on the images above and below.

Buffalo WZR-1750DHP rear panel callouts

Buffalo WZR-1750DHP rear panel callouts


We didn't take apart the 1750DHP and instead relied on the FCC ID photos that had closeups of all the key components. The large plate in the top cover is a heat spreader that is thermally coupled to the ceramic heat spreader on top of the second-generation Broadcom BCM4708A SoC that forms the heart of the router. There is another plate on the other cover with thermal pads that serve as heatsinks for other components.

Buffalo WZR-1750DHP board

Buffalo WZR-1750DHP case and board

Removing the shielding reveals the key Broadcom devices.

Buffalo WZR-1750DHP board

Buffalo WZR-1750DHP board

The WZR-1750DHP's key components are summarized in Table 1 beside the D-Link DIR-868L—the only other AC1750 class router we've reviewed so far using Broadcom's second-generation BCM4708A SoC. The designs are pretty much the same except for more RAM in the Buffalo.

Buffalo WZR-1750DHP D-Link DIR-868L
CPU Broadcom BCM4708A Broadcom BCM4708X
Switch in BCM4708A In BCM4708X
RAM 512 MB 128 MB
Flash 128 MB 128 MB
2.4 GHz Radio - Broadcom BCM4331
- SiGe (Skyworks) SE2605L 2.4 GHz High Power Wireless LAN Power Amplifier (x3)
- BCM4331
- Unidentified external power amplifier (x3)
5 GHz radio - Broadcom BCM4360
- Skyworks SE5003L1 5 GHz, 23dBm Power Amplifier with Power Detector (x3)
- Broadcom BCM4360
- Unidentified power amplifier (x3)
Table 1: Component summary

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