Black Box Expansion Chassis
SKU: 82699943425

Black Box Expansion Chassis

Sale price$204.70 Regular price$227.44
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Description

Black Box Expansion ChassisThe Black Box Expansion Chassis is a cornerstone of the DKM FX Extender System, engineered to deliver unmatched scalability, flexibility, and reliability for complex signal distribution and long haul interfacing. Designed to grow with your infrastructure, this modular housing solution supports 2, 4, 6, or 21 slot configurations and a suite of transmitter and receiver interface cards, enabling an almost limitless array of deployment topologies. Whether

The Black Box Expansion Chassis is a cornerstone of the DKM FX Extender System, engineered to deliver unmatched scalability, flexibility, and reliability for complex signal distribution and long-haul interfacing. Designed to grow with your infrastructure, this modular housing solution supports 2, 4, 6, or 21-slot configurations and a suite of transmitter and receiver interface cards, enabling an almost limitless array of deployment topologies. Whether you’re building a compact extension or a large-scale, multi-chassis network, the Black Box Expansion Chassis makes it easy to tailor, deploy, and maintain your FX extender architecture with precision. Crafted for demanding environments—broadcast facilities, data centers, research labs, and secure mission-critical setups—the system harmonizes performance with simplicity, so you can focus on your core work while enjoying predictable, repeatable results.

  • Modular, scalable design: The chassis lineup supports 2-, 4-, 6-, and 21-slot configurations, giving you the freedom to scale from lean setups to expansive networks. The four-housing option provides additional density or isolation, letting you optimize space, cooling, and cable management in your facility.
  • Flexible transmitter and receiver interfaces: Plug-in interface cards are designed to handle diverse extension needs, enabling robust point-to-point or multi-point topologies. This flexibility makes it easier to adapt to changing requirements without a full-system overhaul.
  • Broad compatibility within the FX ecosystem: Built to integrate seamlessly with the DKM FX Extender System, the expansion chassis unlocks the widest range of possible combinations for your specific application—whether you’re extending video, data, or other high-speed signals across distances.
  • Durable, enterprise-grade construction: A rugged enclosure and precision engineering ensure dependable operation in demanding environments. Expect long-term reliability, consistent performance, and straightforward maintenance as part of your critical infrastructure.
  • Easy customization and maintenance: Designed for straightforward installation and ongoing management, the chassis supports modular upgrades and rapid configuration changes, reducing downtime and accelerating project timelines while preserving system integrity.

Technical Details of Black Box Expansion Chassis

  • Slots and configurations: Modular housing chassis available in 2-, 4-, 6-, and 21-slot formats to match your required density and port count.
  • Interface cards: Transmitter and receiver interface cards provided to enable flexible FX extender connectivity and signal distribution across multiple chassis or sites.
  • Housing options: Four housing configurations to optimize deployment density, heat management, and rack footprint in your data center or broadcast facility.
  • Construction and durability: Professional-grade enclosure designed for reliability in mission-critical applications with robust shielding and EMI performance.
  • Power and cooling considerations: Engineered to maintain signal integrity with appropriate cooling paths and standardized power interfaces within the FX ecosystem.
  • System compatibility: Fully compatible with the DKM FX Extender System, enabling cohesive operation across transmitter/receiver networks and multiple chassis.
  • Dimensions and footprint: Configurations scale with the number of slots and housing choice to fit various rack sizes and room constraints.

How to install Black Box Expansion Chassis

  • Plan your configuration: Determine the slot requirements for your application, decide on the number of chassis and housing types, and map out how transmitters and receivers will be distributed across the network.
  • Install interface cards: Insert the transmitter and receiver interface cards into the available slots according to the official DKM FX Extender System guidelines, ensuring proper seating and secure connections.
  • Configure interconnects: Connect FX extender cables and any required cross-connects between chassis as specified for your topology. Verify cable length, routing, and labeling to simplify future maintenance.
  • Mount and rack the chassis: Place the chassis in the appropriate rack, aligning with standard mounting rails. Ensure adequate ventilation and clearance for cooling, cables, and access panels.
  • Power up and validate: Apply power and boot the system. Use the FX extender management tools to verify link status, channel counts, and signal integrity. Perform a basic functional check with representative test signals and confirm expected performance.

Frequently asked questions

  • Q: What is the Black Box Expansion Chassis?
    A: It is a modular housing system within the DKM FX Extender family that supports multiple slot configurations and a range of transmitter/receiver interface cards, enabling scalable, customizable signal extension across distances and topologies.
  • Q: What slot configurations does it support?
    A: The chassis family offers 2-, 4-, 6-, and 21-slot configurations, with four housing options to tailor density and layout to your facility’s needs.
  • Q: How does it integrate with the FX Extender System?
    A: It is designed for seamless compatibility within the DKM FX Extender ecosystem, allowing you to build large, flexible networks by mixing and matching chassis, interface cards, and housings.
  • Q: What environments is it best suited for?
    A: Enterprise data centers, broadcast facilities, post-production environments, and other demanding settings that require scalable, reliable, and modular signal extension solutions.
  • Q: How do I start installation?
    A: Begin with planning your slot and housing configuration, install the interface cards, connect inter-chassis cabling, mount in a rack, power up, and validate with the FX management tools.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82699943425

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4.3 ★★★★★
Based on 259 reviews
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A
Verified Purchase
Alissa
San Leandro, US
★★★★★ 5
The Best!
This thing is amazing! Worked right out of the box. No drivers to install, no confusion, just plug and go. I'm using this hub to connect a mouse, a keyboard, and a monitor to my 2025 MacBook Air (M4). Before buying this I bought a complicated, powered hub for 2x the price and wasted multiple hours trying to get the $%^&(*& thing to work, which it never did. If you want to run a display and a few peripherals, this Startech hub is the absolute best bang for your buck.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2025
M
Verified Purchase
Michael Cheng
Battle Creek, US
★★★★★ 1
Quality Control Issues
I want to like this dock, I really do. I purchased it with the intention of using it as a hub for my phone + usb-c external display. The pass-through charging never worked on this dock. Tried multiple cords and tested the dock with nothing plugged into any of the USB ports -- all of the power disappears somewhere onto the hub and the actual charge rate on my phone slows to a trickle. With nothing connected, it estimates >24hrs to charge from 30% to full. The plus side is that the usb ports do work, though the usb-c display went from 100% reliability to <50% within a few months of purchase. Extremely frustrating.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2024
B
Verified Purchase
bieb1234
Louisville, US
★★★★★ 5
This is the one, buy it for DeX!
Looking for a compact USB hub to connect your laptop or Samsung DeX capable device? Buy this one! I've tried multiple similar items from name brands, and they work fine as a USB and port hub, but this one is able to support power delivery and display data through a single (capable) USB-c cable. I assume because it is noted to be capable of some combo of USB 3.2, PD 3.0 pass through and DP 1.4 alt mode. I'm not quite sure which one(s) make it possible, but it works for an HP Spectre laptop and Galaxy phone. Only improvement suggestion is to add an additional 10gb capable USB-C port in place of the three USB-A ports, but that's being super picky. Thanks StarTech for building another unique solution for connectivity challenges.
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Reviewed in the United States on February 16, 2025
T
Verified Purchase
Trysta
Draper, US
★★★★★ 2
Usb-c passthrough started failing about a year into ownership.
This had the potential to be the perfect accessory for my M4 MacBook Air. It is very difficult to find dongles like this that support display passthrough via usb-c (meaning that if you have a usb-c display you can connect it to this and use the display). When it did work, I was able to power a triple monitor setup with my 2 port Macbook Air (with one display being driven by a displaylink adapter). If this product had continued to work as advertised, is would be a 5 star review. But after maybe a year of VERY sporadic use (I use this maybe once a week because my MacBook Air is not often docked) the usb-c passthrough is already failing. On a display I use every day with a different machine (a 16" MBP that has enough ports to not need any adapters) and the display and cable work perfectly fine there so I can only assume that it is this specific adapter which is failing. If I insert the connector several times, sometimes I can get it to work but my success rate just keeps dropping. There was no other reason to spend this much on an adapter that without usb-c passthrough offers just 3 usb-a ports like most much cheaper adapters. So to say I am disappointed is an understatement.
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Reviewed in the United States on May 30, 2026
C
Verified Purchase
Charlie Burnham
Lexington, US
★★★★★ 4
Expensive, but it works
The good parts: Yup, this works with DP alt mode, single cable use works for most devices I tried (steam deck, laptop, odin mini 2) even without the hub powered through the power in on the hub, I even got it working without external power to either the hub or my small usb-c monitor. However, some devices like my phone likely didn't give enough power for it to work without another power source. On my phone it worked for some usb devices without external power, but the dp alt mode didn't do work. DP alt on my phone works just fine with external power connected to the hub. Powering it with a small but powerful power bank worked fine, but lower power power banks might not keep up especially if the monitor isn't getting it's own power. It only takes a watt or two of power for the hub itself from some quick and dirty measurements charging my laptop through the pd-in on the hub. As for the rest of it, the three usb 3 ports means you should be enough to get by for any use case, though you may need more dongles or adapters to get the type of connections you need, but quite usable as-is for a lot of purposes. Basically it does what it says, there really is no other hub currently that can do pd alt mode, only big docks which need power supplies. The ok parts: *When it isn't powered* I noticed that with a monitor already plugged in, plugging it into a device would lead to the monitor not being initialized. But plugging the hub into the device first before connecting the monitor worked. No issue when it was powered. You can use this to get display out and charge with a Nintendo switch, but if it's not powered through the pd-in it probably wont switch to TV mode and output video, not sure if that's because of power or software reasons. This is a nitpick, but if you care about the feel or aesthetic it's noticeably bland. The case is plastic and there seems to be no weighting on the inside, it's very light, which can feel cheap but it's not like adding weights would functionally make it better, the case also has a bit of a harsh feeling where it's joined, but it does feel solid and durable enough. It's clearly function over form, just barely meets the minimum bar imo. The bad part: You already saw, but the price is a bit steep for a hub (at $80). I'd love to see it at 60 or even 40 instead, I hope more similar hubs pop up for competition. In summary: It does what it says, if you know you want this and what it is then get it, I feel like it shouldn't cost this much, but it's quite usable and for now it's the only option for a DP alt mode hub. Minus a half star each for subpar presentation and price 4/5
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Reviewed in the United States on October 4, 2024

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