Concluding Remarks

Coming to the business end of the review, we can say without doubt that the Haswell NUC kit with the 2.5" drive slot presents much better value for money compared to the pure mSATA version. Not only are 2.5" SSDs cheaper than mSATA for the same capacity, they also don't create a point of thermal concern near the Wi-Fi module. Pretty much the only downside of the unit over the mSATA-only NUC is the thicker chassis. Our choice of a faster DDR3L memory also improves quite a few benchmark numbers, but not all workloads.

Haswell UCFF PC Options
(From Top Left / Clockwise - Intel D54250WYK, BRIX Pro, BRIX - H, Intel D54250WYKH, BRIX)

The only aspect that Intel could improve from a board perspective is the replacement of separate SATA data and power ports on the motherboard with something similar to what Gigabyte has done for their BRIX boards. In that way, the complicated contraption put in place to support placement of the 2.5" drive slot could have been hugely simplified. They could also include the horizontal SATA power / data cable with the pure board kit so as to simplify things for chassis builders as well as DIY consumers. It is obviously too late to do anything for the Haswell NUCs, but something to consider for the future generation.

In another minor detail, Intel also provides a power cord with this version of the NUC, something that was absent in the D54250WYK and previous generation NUC kits. Given all this, consumers interested in a Haswell NUC would do well to opt for the D54250WYKH with the 2.5" drive slot compared to the D54250WYK unless chassis height or availability of a spare mSATA drive is a major factor in the purchase decision.

Power Consumption and Thermal Performance
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  • osamabinrobot - Sunday, May 18, 2014 - link

    I just built this unit for myself at work and have been digging it.
  • kgh00007 - Sunday, May 18, 2014 - link

    Just some further information for anyone looking to buy one of these.
    This nuc can actually run 2133MHz RAM (G.Skill Ripjaws) and the TDP can also be increased in the bios or using the Intel Extreme Tunig Utility. Its possible to increase the TDP from 15W to 25W or 30W by adjusting the Sustained Mode Power Limit in the bios. This can also be done dynamically with the Intel XTU and be set to load different TDP's on a per app basis.
    This is pretty cool and improves gaming on the nuc considerably as it allows the iGPU to sustain higher clocks. Temps remain the same, around 80degC, but the fan noise does increase a lot as the fan ramps up. I have it set to increase the TDP to 25W for games but to remain at 15W the rest of the time. As far as I know only the i5 versions of the nuc have these adjustments.
    I'm really happy with my nuc hooked up to the living room TV, its an awesome little machine.

    And mine did come with a power cord!
  • Aikouka - Sunday, May 18, 2014 - link

    Amazon actually has a toggle to switch between units with and without a power cord. When I bought my first i3 Haswell NUC, it came without a power cord, but Amazon was rather generous in giving me a partial refund on it, which was more than enough to buy a cable.
  • ganeshts - Sunday, May 18, 2014 - link

    Thanks for the extra info. Pretty sure readers would love to experiment with this feature. To be frank, I wasn't even aware of this and Intel never advertised in their briefings / brochures.
  • kgh00007 - Tuesday, May 20, 2014 - link

    No worries!
  • skiboysteve - Monday, May 19, 2014 - link

    Wow I am doing this for sure. I have my NUC in a very loud industrial rack.
  • MonkeyPaw - Monday, May 19, 2014 - link

    I have an i5 Haswell Yoga 2, and it even has a "dust cleaning" mode. I haven't had to use it, but my guess is it ramps the fan up to clean out the cooling area. Pretty nice if it actually works.
  • extide - Monday, May 19, 2014 - link

    Typically dust cleaning modes actually run the fans in reverse for a little while.
  • SeanFL - Sunday, May 18, 2014 - link

    Built one of these a couple months back for audio editing and it works great. Quite pleased with the performance and the size is amazing. Went with the Samsung 840 evo msata on a recent build and it's even more impressive.
  • Aikouka - Sunday, May 18, 2014 - link

    Ganesh, what Wi-Fi drivers did you use? I'm curious because I own two i3 NUCs, and while I use the same Intel card in both and the same router (FW V1.0.3.24_1.1.20), the performance is awful. It only connects via 802.11n, and while the performance might be alright for a bit, it usually degrades into 1-5Mbps -- but it doesn't actually transmit anything. I've been tempted to try different drivers, but I just end up getting annoyed by the whole thing and plugging in an Ethernet cable. =P

    On that note, I have noticed some odd issues with the Nighthawk. For example, I use a rather awkward generated password for my WiFi, and I don't feel like typing it in on devices like a PS Vita or a 3DS. So, I use WPS to set it up. Unfortunately, WPS on the Nighthawk seems to wreak havoc on the router's WiFi system as it just becomes incredibly unresponsive after using WPS.

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