We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message
Wireless routers Reviews
15,610 Reviews

Asus RT-N56U Black Diamond review

£85 inc VAT

Manufacturer: Asus

Our Rating: We rate this 4 out of 5

The Asus RT-N56U Black Diamond is an attractive dual-band cable router.

Along with the Linksys Cisco X3000, the Asus RT-N56U Black Diamond is one of the few routers we've tested whose designers have made some effort to make the device appear attractive.

It's small chassis is entirely black with a glossy finish and 'diamond' patterned reflective surface, although this unfortunately attracts fingerprints.  There are separate blue status LEDs at the front for both the Asus RT-N56U Black Diamond's 2.4GHz and 5Ghz wireless networks, and the entire router is small and unobtrusive.

See also: Group test: what's the best wireless router?

It has plenty of hardware under its glossy shell too: support for 2.4Ghz and 5GHz wireless, four gigabit Ethernet ports and twin USB ports. This is mostly standard for a premium router, but we like the Asus RT-N56U Black Diamond's extra USB port as it allows for either additional storage, or the use of a network printer and USB hard disk at the same time.

As with the outside of the Asus RT-N56U Black Diamond, the on-board interface has also been given plenty of polish, as it uses lots of helpful icons, bold buttons and a well-structured menu system. This goes through each function of the router in turn, with all network settings under their own 'Advanced' heading. In particular, the icon-based QOS settings are much easier to set up than on routers that rely on text alone.

Asus claims that its 'AI Radar' technology improves wireless performance, since it increases the signal power the router outputs in the specific direction it knows a client is positioned in. In our short range test the Asus RT-N56U Black Diamond managed 7.8MBps, while at long range it managed 3.2MBps. While respectable speeds, this was slightly slower than other routers in its price range.

Asus RT-N56U Black Diamond Expert Verdict »
Wireless bands: 2.4Ghz, 5Ghz
802.11a,b,g,n
WEP/WPA/WPA2
2.4GHz 2x2 internal antennae, 5Ghz: 3x3 internal antennae
4x10/100/1000Mbps
10/100/1000mbps
WAN port
Port Forwarding, QOS
NAT/SPI
2xUSB 2.0
172x145x60mm
330g
  • Build Quality: We give this item 9 of 10 for build quality
  • Features: We give this item 9 of 10 for features
  • Performance: We give this item 8 of 10 for performance
  • Overall: We give this item 8 of 10 overall

The clever design, excellent application of dual-band wireless and dual USB ports make the Asus RT-N56U Black Diamond a very attractive router. While the extras give it an advantage and almost earn it an award, the middle-of-the-road wireless performance brings it back in line with the other premium routers we tested.

There are currently no price comparisons for this product.
  • ASUS RT-N15 SuperSpeed N Wireless Router review

    ASUS RT-N15 SuperSpeed N Wireless Router

    The ASUS RT-N15 SuperSpeed N Wireless Router is a networking device that's easy to overlook when there are products from Netgear, Linksys, and Belkin next to it on the store shelves (or virtual shopfront), but it's definitely worth your time and money.

  • Asus RT-AC66U review

    Asus RT-AC66U

    The Asus RT-AC66U is the best 802.11ac router out now. Read our Asus RT-AC66U review to find out why.

  • Asus RT-AC68U review: a quality all-round wireless router

    Asus RT-AC68U: a quality all-round wireless router

    The RT-AC68U produces record-breaking 802.11ac results, while demonstrating all-round quality. Read our Asus RT-AC68U review to find out more.

  • D-Link DIR-865L review

    D-Link DIR-865L

    The D-Link DIR-865L reviewed here is a user-friendly, dual-band 802.11n/802.11ac router. It's relatively inexpensive, too. Here's our D-Link DIR-865L review.

  • Belkin AC 1200 DB review

    Belkin AC 1200 DB

    The Belkin AC 1200 DB router costs less than many 802.11ac routers, but it delivers a whole lot less, too. Here's our Belkin AC 1200 DB review.


IDG UK Sites

The 30 best TV shows on Netflix UK: Our pick of the best programmes you can watch right now

IDG UK Sites

Nostalgia time: Top 10 best selling mobile phones in history

IDG UK Sites

VFX Emmy: Game of Thrones work garners gong for Rodeo FX

IDG UK Sites

Apple 13-inch MacBook Pro with Retina review (2.6GHz, 128GB, mid-2014)