Middle Atlantic HDR-4 Horizontal Distribution Rack

Two Separate Mounting Bays & Electrical Box All In One

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What's special about the HDR-4 distribution rack?

  • Equipped with an upper bay that is ideal for mounting patch panels with the ability to pivot 100° and has a positive stop needed for punch down installations
  • The rack supports up to 150 lbs. of equipment to support your networking needs
  • Built in electric box for AC power requirements
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UL Classified

Middle Atlantic Products' HDR-4 is an EIA compliant 19" horizontal distribution rack that is ideal for any wall mount rack installation of patch panels and other network equipment. Made proudly in the USA, this rack has two distinct bays for installation of electronic components and an integral electric box for power distribution. Middle Atlantic always ensures its products have multiple electrical cable knockouts and the HDR-4 is no exception. UL listed in the United States and Canada this vented rack with locking front door will keep your conduit safe even in unsecured locations.

Part #DescriptionDimensionsWeightPrice
MA-HDR-4Horizontal Distribution Rack24"W x 36"H x 7.5"D60 lbs.
Manufacturer Direct
MA-HDR-FANAccessory Fan Kit4.5"sq.1.4 lbs.
Manufacturer Direct
  • Lower bay can be used to install most hubs, routers and switches with a 15 degree pivot for rear access to wiring connections
  • Vented locking front door is beveled and flanged to keep your equipment secure almost anywhere
  • UL 60950 listed in the USA and Canada to meet standards for Information Technology equipment
  • Made of durable 16 gauge steel in a putty powder coat finish for durability and scratch resistance
  • Upper rack bay is 2 rack spaces high so it can fit patch panels easily while pivoting 100°
  • Lower rack bay is 2 rack spaces high to accommodate equipment 3-1/2" and pivot 15° for rear access needs for connections 18" in depth
  • Sturdy EIA compliant black powder coat universally spaced rack rails are made of 11 gauge steel that are tapped with 10-32 size mounting holes
  • Built in 2-gang electrical box for convenience of powering your switch equipment
  • For safety, each rack has a grounding-bonding stud built into the unit
  • 4" cable duct knockouts are found on the top, bottom and sides for convenient access to electrical wiring and meets the requirements for utilizing Wiremold 4000 series raceway
  • 7" x 4" cable pass through on the back pan and multiple tie points for cable management
  • 24" length of hook and loop fasteners are included to organize the cable connections throughout the rack
  • Built in lacing bar for cable ties is found on top of the rack rail
  • Lifetime Warranty from Middle Atlantic Products, an ISO 9001:2000 registered company
Part # MA-HDR-4
Racking Units 2 + patch panel(s)
Pivot Upper bay: 100°
Lower bay: 15°
Overall Width 24" [610 mm]
Racking Width 19" [483 mm]
Overall Height 36" [914 mm]
Racking Height Lower bay: 2U
Overall Depth 7-1/2" [191 mm]
Racking Depth Lower bay: 18"
Material 16 gauge steel
Load Capacity 150 lbs
Weight 60 lbs
Dimensions 4.5"sq.
Weight 1.4 lbs.



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Questions & Answers


The photos of the MA-HDR-4 show a fan mounted to the cabinet. However I do not see a fan listed in the specs. Does this cabinet come with a fan and if not what is the cost of a fan for it? Thanks

Asked by Anonymous user on 08/10/2017 12:49 PM

  • - Hello, The fan is separate and is $56.04.

    andrew b. on 08/24/2017 10:09 AM

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