ASRock Industrial's lineup of ultra-compact form-factor machines in the NUC BOX (Intel-based) and 4X4 BOX (AMD-based) series has gained popularity over the last couple of years. Being the first to market with the latest platforms has been one of the key reasons behind this. In 2022, the company had launched the Intel Alder Lake and AMD Cezanne UCFF systems together, with the NUC BOX-1200 series and the 4X4 BOX-5000 series becoming available for purchase within a few weeks of each other. Earlier this year, the Intel Raptor Lake-based NUC BOX-1300 series was launched (our review) and is already available for purchase. The company recently took the wraps off the 4X4 BOX 7000/D5 series based on AMD's low-power Rembrandt-R APUs. These APUs sport Zen 3+ cores along with a RDNA2 iGPU fabricated on a TSMC 6nm process.

One of the key updates in the new 4X4 BOX systems is the move to DDR5 SODIMMs. The other updates in the platform such as support for a PCIe 4.0 x4 M.2 NVMe SSD and USB4 40 Gbps bring it almost on par with the premium UCFF systems based on Intel processors. Full-fledged USB4 support inclusive of PCIe tunneling has been somewhat of a hit or miss on AMD platforms, as many OEMs have refrained from integrating the necessary board components to enable it. AMD itself had some work to do on the firmware side before the feature baked into the hardware of Rembrandt and later APUs could be enabled. The good news here is that the ASRock Industrial 4X4 BOX 7000/D5 series has two USB4 ports capable of supporting DisplayPort 1.4 signals as well as PCIe tunneling - this means that Thunderbolt 3 peripherals should work when connected to those Type-C ports.

The 4X4 BOX 7000/D5 series comes in two flavors. The specifications of both models are summarized in the table below.

ASRock Industrial 4X4 BOX 7000/D5 (Rembrandt-R) Lineup
Model 4X4 BOX-7735U/D5 4X4 BOX-7535U/D5
CPU AMD Ryzen 7 7735U
8C / 16T
2.7 GHz (Up to 4.75 GHz)
AMD Ryzen 5 7535U
6C / 12T
2.9 GHz (Up to 4.55 GHz)
GPU AMD Radeon 680M
(12 CU / 768 Shaders) @ 2.2 GHz
AMD Radeon 660M
(6 CU / 384 Shaders) @ 1.9 GHz
Up to 64 GB of DDR5-4800 in dual-channel mode
Motherboard 4.02" x 4.09" UCFF
Storage SSD 1x M.2-22(42/60/80) (PCIe 4.0 x4 (CPU-direct))
DFF 1 × SATA III Port (for 2.5" drive)
Wireless Mediatek MT7922 (RZ616)? Wi-Fi 6E
2x2 802.11ax Wi-Fi (2.4Gbps) + Bluetooth 5.2 module
Ethernet 1x 2.5 GbE RJ-45 (Realtek RTL8125)
1x GbE RJ-45 (Realtek RTL8111EPV with DASH Support)
USB Front 1 × USB 3.2 Gen 2 Type-A
2x USB4 (with DisplayPort 1.4a Alt Mode)
Rear 2 × USB 2.0 Type-A
Display Outputs 1 × HDMI 2.1 (Rear, up to 8Kp60)
1 × DisplayPort 1.4a (Rear, up to 4Kp60)
2 × DisplayPort 1.4a (using Front Panel Type-C ports, up to 4Kp60)
Audio 1 × 3.5mm audio jack (Realtek ALC233)
PSU External (19V/90W)
Dimensions Length: 117.5 mm
Width: 110 mm
Height: 47.85 mm

Note that the M.2 2280 support is enabled by a separate bracket, similar to the previous NUC BOX and 4X4 BOX systems with 2.5" drive support and dual LAN capabilities.

Overall, these systems bring the AMD UCFF scene on par with the high-end Intel NUCs and its clones - except for the newer NUC BOX-1300/D5 series which has Thunderbolt 4 ports that also have USB 3.2 Gen 2x2 support for 20Gbps PSSDs. The USB4 ports in the 4X4 BOX 7000/D5 support only up to USB 3.2 Gen 2 speeds in legacy USB (non-PCIe tunneling) mode. The RDNA2 iGPU in the new machines should also help these systems perform as well as the the Alder Lake and Raptor Lake mini-PCs in graphics-heavy workloads.

We have reached out to ASRock Industrial for clarity on market availability dates and pricing, and will update the article with the details after receiving them (Update - Feb 15, 2023: The systems will be available for purchase in mid-March 2023. The 4X4 BOX-7735U/D5 will have a pre-tax MSRP of $650, and the 4X4 BOX-7535U/D5 will have a pre-tax MSRP of $500).

Source: ASRock Industrial

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  • lmcd - Friday, February 10, 2023 - link

    That polished plastic is hideous but otherwise this is exactly what I've wanted out of this series.
  • NextGen_Gamer - Friday, February 10, 2023 - link

    It's honestly enough to make me not want it haha. Like truly hideous
  • Makaveli - Saturday, February 11, 2023 - link

    Serious I would pay extra for an aluminum chassis
  • NextGen_Gamer - Monday, February 13, 2023 - link

    100% would as well
  • - Tuesday, February 14, 2023 - link

    Did you want the fan noise? Did you want the change from Intel WIFI/BT to Mediatek?
  • lmcd - Tuesday, February 21, 2023 - link

    Don't care about the wireless chipset choice. Fan noise is also whatever.
  • - Saturday, February 25, 2023 - link

    Ditto. Wireless chipset choice not an issue. Fan noise and cooling could be better. I accept it. Just put the 7735U out on the market!
  • meacupla - Friday, February 10, 2023 - link

    Is this the latest Ryzen mobile U series? I don't have the AMD coder wheel, so it's always confusing
    12CU sounds fantastic for this size
    USB-C with alt-mode DP sounds great, but I find it annoying that they're both placed on the front.
    Was there really no possibility of having USB 3.x on the back?
    It has a 90W power brick on a 28W APU? Does it support PD over its USB-C ports?
    It really ought to have an optional USB-C PD power input

    All in all, not a bad first design to market, but I am hoping other makers offer better port layouts.
  • lmcd - Friday, February 10, 2023 - link

    Agreed on the desire for USB-C PD power input but chances are low. Industrial views USB-C PD as an anti-feature, rightfully. An end user product would support that ideally.

    This is the latest Ryzen mobile U series, but that's because the real 7000 Zen 4 line has not arrived yet. It's Zen 3+, a rebranded 6000 APU.

    12CU is misleading because DDR5 can only supply so much bandwidth in a dual-channel configuration (or quad with DDR5, whatever that stupid nomenclature is these days).
  • TheinsanegamerN - Friday, February 10, 2023 - link

    By "latest U series" he is asking if it is zen 4.

    CU count has absolutely nothing to do with DDR5 bandwidth, no idea what youre talking about, its not misleading, the silicon has 12 graphical CUS.

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