The Skylake-U platform for mini-PCs has turned out to be an interesting one. Numerous challenges were faced by the first one in the market - the Intel Skylake NUC. Eventual BIOS fixes made the platform realize its full potential. All these aspects made Intel's partners take it a bit slow when it came to promoting their Skylake-U mini-PCs. Vendors like GIGABYTE and ASUS have been selling their version of NUCs for a few generations now. The Beebox-S is ASRock's first play in the Core-based UCFF (ultra-compact form-factor, i.e, NUC-type machines) PC market.

Introduction and Platform Impressions

ASRock was one of the pioneers in the mini-PC market, thanks to their Vision / Core series units. Based on motherboards meant for the notebook market (smaller than mini-ITX, but larger than pico-ITX), they were regularly refreshed starting with the ION-based nettops. Over the last couple of years, mini-PCs in the ultra-compact form factor (UCFF) - tagged as NUCs after being made popular by the Intel Next Unit of Computing systems - have emerged as one of the bright spots in the troubled PC market.

ASRock's first play in the UCFF market segment was the 2015 Beebox series based on the Intel Braswell SoCs. The mini-PC brought in plenty of premium features without driving up the price compared to other Braswell units, and even came in a fanless version. The Beebox-S adopts the same chassis design, but, the internals make a move up to the Skylake-U platform. ASRock's marketing angle with the Beebox-S is similar to that of the Braswell Beebox - attempting to provide more value for money compared to competing units.

The ASRock Beebox-S series is currently made up of two SKUs, one based on the Core i3-6100U and another based on the Core i5-6200U. Both of these come barebones (no storage, RAM or OS). The specifications of our ASRock Beebox-S 6200U are summarized in the table below.

ASRock Beebox-S 6200U Specifications
Processor Intel Core i5-6200U
Skylake, 2C/4T, 2.3 GHz (Turbo to 2.8 GHz), 14nm, 3MB L2, 15W TDP
Memory Mushkin MES4S213FF8G28 DDR4
15-15-15-36 @ 2133 MHz
2x8 GB
Graphics Intel HD Graphics 520
Disk Drive(s) Samsung SSD 950 PRO
(512 GB; M.2 Type 2280 PCIe 3.0 x4 NVMe; 40nm; MLC V-NAND)
Networking Intel Dual Band Wireless-AC 3160
(1x1 802.11ac - 433 Mbps)
Intel Gigabit Ethernet Connection I219-V
Audio Capable of 5.1/7.1 digital output with HD audio bitstreaming (HDMI)
Miscellaneous I/O Ports 1x USB 3.1 Gen 2 Type-C
3x USB 3.0
Operating System Retail unit is barebones, but we installed Windows 10 Pro x64
Pricing (As configured) $720
Full Specifications ASRock Beebox-S Specifications

The ASRock Beebox-S 6200U kit doesn't come with any pre-installed OS, but does come with a CD containing Windows drivers. In any case, we ended up installing the latest drivers downloaded off ASRock's product support page. In addition to the main unit, the other components of the package include a 65 W (19V @ 3.42A) adapter with a US power connector, a VESA mount (along with the necessary screws), a driver CD, user's manual and a quick-start guide. In addition, we also have the appropriate cables - both data and power - to install a 2.5" drive in the system. A small IR remote control with a pre-installed CR232 battery is also part of the package.

The unique part of the package is a small plastic tab and an additional screw that allows for installation of a M.2 2280 SSD in the unit. The gallery further below has a photograph showing the placement of this tab to enable the installation. It also takes us around the chassis and internal components of the unit.

Interesting components on the board include the ASMedia ASM1442K level shifter for the HDMI 1.4 port, the TI TS3DV642 video signal multiplexer/demultiplexer (that allows one of either the HDMI 1.4 or DisplayPort outputs to be active). Note that even though Skylake-U can theoretically support up to three simultaneous displays, the Beebox-S supports only two at a time (either HDMI 2.0 + HDMI 1.4 or HDMI 2.0 + DP). Other components that reside on the underside include the ASMedia ASM1142 USB 3.1 bridge chip and the MegaChips LSPCon to enable the HDMI 2.0 output from the DisplayPort output of the Skylake-U SiP.

Platform Analysis

The Beebox-S is an obvious alternative to the Skylake NUC, with our review unit going up against the NUC6i5SYK. The board layout of the Beebox-S is presented below.

It is interesting to compare this layout against that of the Intel NUC6i5SYK. We find the following important differences.

  • The PCH PCIe lanes are distributed as below
    • PCI-E 3.0 x1 port #4: In Use @ x1 (ASMedia ASM1142 USB 3.1 xHCI Controller)
    • PCI-E 3.0 x1 port #5: In Use @ x1 (Intel Dual Band Wireless-AC 3160 AC HMC WiFi Adapter)
    • PCI-E 3.0 x4 port #9: In Use @ x4 (M.2 NVMe SSD)
  • Replacement of the mini-DP port with a HDMI 2.0 port using a DP to HDMI LSPCon
  • Removal of SDXC 3.0 slot and one of the front USB 3.0 ports (the front port is replaced by a USB 3.1 Gen 2 Type-C port from the ASM1142 controller)

ASRock's BIOS has plenty of features that are missing in the BIOS from other vendors. I will not go into the details of all the BIOS features, but, readers interested in checking out the available options can peruse the user manual available here.

In the table below, we have an overview of the various systems that we are comparing the ASRock Beebox-S 6200U against. Note that they may not belong to the same market segment. The relevant configuration details of the machines are provided so that readers have an understanding of why some benchmark numbers are skewed for or against the ASRock Beebox-S 6200U when we come to those sections.

Comparative PC Configurations
Aspect ASRock Beebox-S 6200U
CPU Intel Core i5-6200U Intel Core i5-6200U
GPU Intel HD Graphics 520 Intel HD Graphics 520
RAM Mushkin MES4S213FF8G28 DDR4
15-15-15-36 @ 2133 MHz
2x8 GB
Mushkin MES4S213FF8G28 DDR4
15-15-15-36 @ 2133 MHz
2x8 GB
Storage Samsung SSD 950 PRO
(512 GB; M.2 Type 2280 PCIe 3.0 x4 NVMe; 40nm; MLC V-NAND)
Samsung SSD 950 PRO
(512 GB; M.2 Type 2280 PCIe 3.0 x4 NVMe; 40nm; MLC V-NAND)
Wi-Fi Intel Dual Band Wireless-AC 3160
(1x1 802.11ac - 433 Mbps)
Intel Dual Band Wireless-AC 3160
(1x1 802.11ac - 433 Mbps)
Price (in USD, when built) $720 $720
Performance Metrics - I
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  • tipoo - Wednesday, August 10, 2016 - link

    I like how they'll keep including CDs after they removed DVD slots, lol
  • BrokenCrayons - Wednesday, August 10, 2016 - link

    Yeah, that is sort of silly. It probably boils down to cost. Cheap little USB drives are several dollars whereas a disc is a few pennies and can't be accidentally erased by the end user...though you could write protect any other storage medium too.
  • Chaitanya - Wednesday, August 10, 2016 - link

    There are couple of NAND based products that follow: write once read many scheme. I wouldnt mind having a read only USB flashdrive containing drivers and bios for safe fall back option.
  • ganeshts - Wednesday, August 10, 2016 - link

    Yes, Zotac and GIGABYTE do that. ASRock is following the feedback from this article, so they will be getting the message :)
  • thegreenhundred - Wednesday, August 10, 2016 - link

    Or we can save the OEM a few bucks and lots of supply chain/production work by downloading & backing up any drivers we want for the infamous "what if" scenereos........ that and getting said drivers from component vendors is likely to give much newer/better versions of said drivers than what the OEM could assemble at time of production.
  • BrokenCrayons - Thursday, August 11, 2016 - link

    It's good to know ASRock is taking feedback into account. Even if the company elects to continue shipping products with drivers on discs, the fact that they're at least considering feedback at all says a lot of nice things about them.
  • Shiitaki - Sunday, August 14, 2016 - link

    What Asrock and the rest of the PC industry should be looking at is a proper drive curation system. Microsoft COULD be better here. Any modern UEFI motherboard should be able to phone home for firmware updates and even download a driver package. If Apple can pull this off, then the board manufactures certainly could as well. After all you would only need to write the UEFI app once and then include it in every firmware upgrade. Even older boards could be upgraded retroactively. The option to dump them on to a flash drive should be a standard method. That way real drivers and firmware updates are both easy and available. Though Microsoft should be releasing updated images every month instead of every OS release.
  • Ro_Ja - Wednesday, August 10, 2016 - link

    I'd still pick the Intel NUC6i5SYK over this. Is the Samsung 950 Pro more expensive than Samsung SM951? Sorry guys I'm really new to these things.
  • fanofanand - Wednesday, August 10, 2016 - link

    I was thinking the same thing, the 5SYK has much better Wi-Fi, a faster processor, and though it would be about $90 more if the SSD capacity were identical, you would also be getting Intel QC. Slightly better timings on the RAM used on the 5SYK as well. I am still holding out hope that I can get one of these for my son instead of building out a rig. I don't think we are quite there yet. Great for office and light browsing, facebook etc., but still not ready for primetime.
  • jaydee - Wednesday, August 10, 2016 - link

    I'm not sure you're looking at this the right way. The i5-6200 CPU should be faster than the i5-5250U. The RAM typically doesn't come supplied with either unit, you buy/install whichever you want. The Wifi card is an easy replacement for either, I wouldn't let that be a determining factor either.

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