ZOTAC has been working on its external chassis for graphics cards with a Thunderbolt 3 interconnection for well over a year now. Apparently, according to ZOTAC, the time it spent was worth it. On Thursday, the company announced not one, but two eGFX TB3 enclosures targeting different audiences and offering different features. The AMP Box is designed for those demanding maximum performance, whereas the AMB Box Mini is aimed at people seeking a quiet and portable solution.

About 1.5 years after the first external chassis for graphics cards with TB3 emerged, the market for such solutions seems to be doing quite well and so it begins to segment into niches. Initially, companies like ASUS, AKiTiO, PowerColor, Razer, and others only offered eGFX boxes for large desktop graphics cards offering maximum performance and consuming a huge amount of power. Then we saw GIGABYTE and GALAX/KFA2 launch rather compact eGFX chassis with pre-installed graphics cards targeting casual users who do not want to assemble anything themselves and do not want and an add-on component that is larger than an SFF PC. Now ZOTAC is releasing two separate solutions (another signal that the market is well established): the AMP Box for DIY enthusiasts that is compatible with high-end graphics cards, and the AMP Box Mini for owners of ZOTAC’s tiny ZBOX computers with a TB3 port as well as everyone who wants a compact eGFX enclosure.

The large ZOTAC’s AMP Box uses aluminum chassis that can accommodate a dual-slot graphics adapter that is up to 228.6 mm (9”) long and with two 8-pin PCIe auxiliary power connectors. It should be noted that most high-end reference graphics cards from AMD and NVIDIA are around 31.2 cm (10.5") and they are not going to fit into the AMP Box. Therefore, those who plan to use it will have to get "mini" versions of the GPUs from ZOTAC or other manufacturers. To ZOTAC's credit, it should be noted that the AMP Box is a bit smaller than its competitors from ASUS, AKiTiO or PowerColor. The eGFX TB3 enclosure is equipped with a quad-port USB 3.0 hub (two ports on the front, two on the back, one supports Quick Charging) as well as a 450 W PSU (it is unclear whether we are dealing with a standard, or a custom unit here) to guarantee compatibility with ultra-high-end video cards that need more than “standard” 250 W. Given the wattage of the power supply, it is likely that the AMP Box can also charge a laptop when in use, but the maker has yet to confirm it.

Since the AMP Box was designed for demanding gamers, it is also equipped with ZOTAC’s Spectra programmable RGB lighting so to add some shine to its grey aluminum outfit.

The smaller ZOTAC AMP Box Mini that comes in black metallic chassis only fits in dual-slot add-in-cards that are up to 200 mm (7.87”) long and need a single 6-pin PCIe power connector. The manufacturer proposes to use this enclosure for entry-level graphics cards or even high-capacity SSDs. Considering that ultra-compact form-factor desktops, as well as many notebooks, come with rather mediocre CPUs that are barely designed to run demanding games, mainstream graphics cards will be optimal for such systems. Moreover, those who need to attach a laptop or a tiny desktop to three or four monitors do not need maximum performance in games, so this AMP Box Mini may end up quite popular among such users.

The design of the enclosure is similar to the design of ZOTAC’s MI553 SFF PC, but the box itself is compatible with all of the company’s UCFF systems with a TB3 port, including the CI549 nano, MI549 nano, MI552, and MI572.

ZOTAC's AMP Box and AMP Box Mini eGFX Chassis vs. Razer Core
    AMP Box
AMP Box Mini
Razer Core V2
Chassis Dimensions Length 27.1 cm
18.3 cm
34 cm
Height 25.7 cm
0.99 cm
21.84 cm
Width 14.6 cm
230 mm
10.5 cm
Max Dimension of Compatible Graphics Card Length 22.8 cm
20 cm
31.2 cm
14.5 cm
Width 4.3 cm
Maximum GPU Power 250 W 150 W 375 W
PSU Wattage 450 W external 180 W 500 W
Form-Factor ? custom internal proprietary
Cooling Fans (mm) - -  3 × 80 (?)
Connectivity Thunderbolt 1 × TB3
Ethernet - 1 × GbE
USB 4 × USB 3.0 4 × USB 3.0
DisplayPort -
Availability 2018 Q4 2017
Price ? ? $499

ZOTAC plans to demonstrate the AMP Box and the AMP Box Mini eGFX enclosures at CES next month. The units are expected to hit store shelves sometimes in Q1 or Q2, but their exact prices are unknown.  

Related Reading

Source: ZOTAC

Comments Locked


View All Comments

  • ET - Tuesday, December 26, 2017 - link

    I'm not sure what's not clear to you. The Mini can help add a card up to a GeForce 1060 to a laptop. That's certainly a card that a lot of people buy (more people than buy higher end cards, I'd say), and would be a good upgrade for most laptops.
  • JoeyJoJo123 - Wednesday, December 27, 2017 - link

    I think the problem with lots of these eGPU boxes is that they're still not suitably small enough. The problem with many of them is really inefficient internal layouts and overall volumes. The AmpBox is larger than the Dan A4-SFX case that's popular for very miniaturized portable PCs, yet the Dan A4-SFX includes the entire PC, motherboard, RAM, CPU, CPU cooler, HDDs/SSDs, power supply, and graphics card; yet the AmpBox only has a small logic board for the I/O and GPU, space for the GPU, and the internal PSU.

    The AmpBox Mini on the other hand is pretty small, and the caveat of only supporting PCI-e bus-powered GPUs is actually OK, IMO. 1050Ti is plenty OK with most anemic M-series CPUs and will give acceptable performance (50 ~ 60FPS) on most titles at 1080p with high textures and Anisotrophic Filtering, no AA (or SFAA), with most other extra graphics settings off or on lowest settings (shadows, advanced lighting, particle effects, water effects/reflections, etc).

    The AmpBox Mini actually looks pretty interesting, but I'm not sure how it compares in size to the mini GTX 1070 Gigabyte Aorous box.

Log in

Don't have an account? Sign up now