Middle Atlantic ERK-40-R-EXT3 Rack Front Extension Frame
SKU: 11875159538

Middle Atlantic ERK-40-R-EXT3 Rack Front Extension Frame

Sale price$165.24 Regular price$183.60
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Description

Middle Atlantic ERK-40-R-EXT3 Rack Front Extension FrameMiddle Atlantic ERK 40 R EXT3 Rack Front Extension Frame Upgrade your rack configuration with the ERK 40 R EXT3 Rack Front Extension Frame from Middle Atlantic. This durable steel, black finish extension adds 3 inches of usable depth to the rear of your enclosure, giving you extra room for deeper gear, power distribution, and cable management while preserving the professional look of your cabinet. Designed to work seamlessly with your existing doors

Middle Atlantic ERK-40-R-EXT3 Rack Front Extension Frame

Upgrade your rack configuration with the ERK-40-R-EXT3 Rack Front Extension Frame from Middle Atlantic. This durable steel, black-finish extension adds 3 inches of usable depth to the rear of your enclosure, giving you extra room for deeper gear, power distribution, and cable management while preserving the professional look of your cabinet. Designed to work seamlessly with your existing doors (which can be reused), it’s an economical, scalable solution for expanding storage, AV, IT, or pro audio racks without sacrificing accessibility or aesthetics. The ERK-40-R-EXT3 is built to withstand demanding environments and integrates smoothly with other ERK components, delivering reliable performance and straightforward installation for both installers and end users.

  • Adds 3" of usable depth to the rear of your rack, enabling deeper equipment, improved airflow, and more flexible layout options without replacing the entire enclosure.
  • Compatible with existing doors that can be reused, preserving the clean, uniform appearance of your rack and reducing downtime during upgrades.
  • Includes electrical and cable pass-through knockouts to simplify power routing and cable management, helping you maintain organized, accessible wiring behind the door panel.
  • Stackable design allows you to build out depth incrementally by combining multiple extensions, making it easy to scale your rack as equipment expands or changes.
  • Durable black steel construction provides rugged support for heavy gear, with a professional finish that complements standard Middle Atlantic racks and accessories.

Technical Details of ERK-40-R-EXT3

  • Model: ERK-40-R-EXT3
  • Material: Steel
  • Finish: Black powder coat
  • Depth addition: 3 inches to the rear of the rack
  • Doors: Uses existing doors; can be reused to maintain a consistent cabinet appearance
  • Knockouts: Electrical and cable pass-through knockouts for power and signal management
  • Compatibility: Designed for Middle Atlantic racks and ERK series components; works with standard rack configurations that accommodate front extension frames
  • Mounting: Bolt-on or screw-attached to the rear section of compatible racks; designed for straightforward installation without specialized tools
  • Stackability: Can be combined with additional ERK extension frames to reach greater depths as needed

How to install Middle Atlantic ERK-40-R-EXT3

  • Verify compatibility: Ensure your rack supports rear-depth extensions and that you have access to the rear mounting points and doors intended for reuse.
  • Prepare the rack: If your doors are currently in place, remove or loosen them only as needed to align the extension frame with the rear rails and mounting points.
  • Position the extension: Align the ERK-40-R-EXT3 extension with the rear of the rack, matching mounting holes and edges to the existing frame for a secure fit.
  • Secure the frame: Use the appropriate mounting screws or hardware specified for your rack model to attach the extension firmly to the rear rails, ensuring there is no wobble and that the frame sits flush with the cabinet.
  • Reinstall doors: Reattach the existing doors (or reinstall the doors supplied with your rack) to maintain a cohesive appearance and proper door clearance with the extended depth.
  • Route cables and power: Utilize the electrical and cable pass-through knockouts to organize cables, power feeders, and data lines behind the door panel. Label and route cables to minimize congestion and maximize airflow.
  • Test and finalize: Close the doors, verify clearance, and power on equipment to confirm proper fit and operation. Make any minor adjustments to cable routing as needed.

Frequently asked questions

  • Q: What does the ERK-40-R-EXT3 do?
    A: It adds 3 inches of usable depth to the rear of a rack, allowing deeper components and improved cable management, while enabling the reuse of existing doors for a clean, integrated look.
  • Q: Can I reuse my doors with this extension?
    A: Yes. The ERK-40-R-EXT3 is designed to work with existing doors, which can be reused to maintain a consistent aesthetic and save installation time.
  • Q: Is this extension stackable with other ERK extensions?
    A: Yes. The design supports stacking with additional ERK extension frames to achieve greater depths as your system grows.
  • Q: What kind of knockouts are included?
    A: The extension includes electrical and cable pass-through knockouts to facilitate power distribution and cable routing behind the door panel.
  • Q: Is the extension compatible with all Middle Atlantic racks?
    A: It is designed to work with Middle Atlantic racks and ERK-series components. Compatibility depends on the rack’s rear mounting options and door configuration; verify fit with your specific model before installation.
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: 11875159538

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Louisville, US
★★★★★ 5
Ridiculously satisfying!
Size: iPad A16 11th/10th, Size: iPad A16 11th/10th
YES! I am completely obsessed with the SPARIN Screen Protector for iPad! From the moment I applied it, my screen looked crystal clear and felt silky smooth like butter under my fingers. The fit is absolutely perfect for both my 11th and 10th generation iPads, hugging every edge without a single bubble or misalignment. I love how responsive it is... swipes, taps, and even intense drawing sessions feel flawless, like my iPad is brand new again. The protector is tough and scratch-resistant, so I can toss it in my bag without worrying about keys or pens ruining my screen. I also love that it doesn’t mess with the display brightness or clarity, so everything still looks vibrant and sharp. Applying it was super easy and stress-free, which honestly surprised me because I expected a million bubbles or frustration. Five stars all the way for a screen protector that makes my iPad feel safe, sleek, and ridiculously satisfying to use every single day!
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Reviewed in the United States on February 25, 2026
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Jat
Natrona Heights, US
★★★★★ 5
Happy With The Quality of This Screen Protector
Size: iPad Air 13'' M4/M3 /M2 & iPad Pro 13'', Size: iPad Air 13'' M4/M3 /M2 & iPad Pro 13''
This is my Amazon review for the SPARIN Screen Protector for iPad Air 13 Inch M4 2026 & M3 2025 & M2 2024 (8th/7th/6th Generation) & iPad Pro 13 Inch M5/M4 (8th/7th Gen), Case Friendly, 2 Pack Tempered Glass, Support Apple Pencil. This is an easy to apply screen saver with few bubbles to smooth out. It is very clear and covers the screen perfectly. I literally can only see it is on because of the cut-out over the camera. It is very thin and transparent. My iPad also responds precisely the same to my touch and pencil, so the touch sensitivity feels great. I am very happy with the quality of this screen protector so far. It seems to be a good quality screen protector. Thanks, Amazon.
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Reviewed in the United States on May 26, 2026
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Minnie
Fort Morgan, US
★★★★★ 5
Nice protector!
Size: iPad pro 13'' 7th (2024)
Great product and value! It fit my iPad Pro nicely. -Went on easily.
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Reviewed in the United States on May 25, 2026
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Ashley Cochran
Waukegan, US
★★★★★ 5
Great quality product
Size: iPad A16 11th/10th
This is a great quality product that is easy to apply. It's scratch proof with no glare on the screen. We were able to apply this screen protector with no bubbles on the screen. It's heavy duty and will prevent screen cracking if this is dropped. I would definately recommend this product!
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Nandu
Waukegan, US
★★★★★ 5
Screen protector
Size: iPad Air 11" M4/ M3/M2, Size: iPad Air 11" M4/ M3/M2
I’m really happy with this screen protector for my iPad. The quality feels really good, and it fits perfectly on the screen without affecting the display quality or touch sensitivity. I was worried it might make the screen look dull or reduce responsiveness with the Apple Pencil, but everything still works super smoothly. It also helps reduce fingerprints and keeps my screen protected from scratches, which gives me peace of mind while carrying it around daily.
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