SKB 3SKB-R904U28 28 inch Deep 4U Roto Shock Rack, Black
SKB R90: Picture 1 thumbnail
SKB R90: Picture 2 thumbnail
SKB R90: Picture 3 thumbnail
SKB R90: Picture 4 thumbnail
SKB R90: Picture 5 thumbnail
SKB R90: Picture 6 thumbnail
See all SKB items

SKB 3-R904U28 28" Deep 4U Roto Shock Rack, Black

SKU: SKBR904U28 MFR: 3SKB-R904U28
Be the first to review this item1 question, 1 answer
$2,104.99
OR
$176/mo suggested payments with 12‑month special financing. Learn how.
Earn VIP Reward Points

Key Features

  • Protect your valuable equipment with this durable SKB 4U shock rack case; order yours today!
  • This affordable 4U roto rack provides excellent protection without breaking the bank; get organized now.
  • Enjoy high-quality protection for your gear with a 28" deep rack, perfect for pro audio setups.
  • Set up your gear quickly with this easy-to-handle SKB rack case, designed for convenience.
  • Its compact size makes this 4U rack mount ideal for studios or mobile recording rigs; buy now!
  • Read the good reviews and discover why users trust SKB rack cases for reliable equipment protection.
See More Product Details
Special Order?Estimated to Ship: 08/17/2025
Free Shipping

See Options

1
Add to ListGet Sale Alert

Protect your gear with Adorama Protect.* Learn more

2 Year

$289.99

3 Year

$449.99

4 Year

$549.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Browse our FAQ

See Terms & Conditions

SKB R90 Specifications

  • Material

    Linear Low Density Polyethylene / Linear Medium Density Polyethylene plastic

  • Lid Depth

    4.50 in / 11.43 cm

  • Interior Cu. Volume

    2.21 cu ft / 0.06 cu m

  • Rack Space Units Total

    4

  • Rack Depth Rail to Rail

    28.75 in / 73.03 cm

  • Rack Depth Front Rail to Back Lid

    33.25 in / 84.46 cm

  • Interior Dimensions (W x H)

    19 x 7 in /48.26 x 17.78 cm

  • Weight

    61.45 lb / 27.87 kg

  • UPC Code

    789270090453

About SKB R90

The SKB 3SKB-R904U28 4U Rack (Black) is a 28" deep roto-molded shock rack which should be an instant success with all companies utilizing the deeper servers such as the new Dell and Compaq. 28 inch Heavy Duty Shockrack systems include a revolutionary new patent pending Adjustable Rail Conversion System. This ARCS technology allows the user to adjust the rack width up to 0.5 inches on each side and optional easy-mount adapter rails will convert the equipment mounting standard from 3/16" threaded to 7/32" through holes or square cage nut windows. The 7/32" through hole option and the 3/16" threaded are special order items. Accommodates Dell and Compaq servers utilizing "Versa-rail" or "Rapid-rail" pull-out systems.

SKB R90 Features

  • Includes adjustable rail conversion system (arcs)
  • Patent pending compound hinged doors
  • Rear rails, casters
  • Shock and water resistant
  • Gasketed doors
  • Pressure relief valve
  • Field replaceable latches
  • Removable 4" casters standard
  • Stacks securely with the wheels on or off
  • Recessed latches
  • Adjustable elastomer shock absorbers
  • Provisions to add additional shocks
  • Roto molded for strength

Warranty Information

This product has a limited lifetime warranty.

Join VIP PRO

2 Day Delivery on thousands of items!

Sell or Trade your Gear

Get started in 3 easy steps

Key Features

  • Protect your valuable equipment with this durable SKB 4U shock rack case; order yours today!
  • This affordable 4U roto rack provides excellent protection without breaking the bank; get organized now.
  • Enjoy high-quality protection for your gear with a 28" deep rack, perfect for pro audio setups.
  • Set up your gear quickly with this easy-to-handle SKB rack case, designed for convenience.
  • Its compact size makes this 4U rack mount ideal for studios or mobile recording rigs; buy now!
  • Read the good reviews and discover why users trust SKB rack cases for reliable equipment protection.

What's in the box:

  • 3-R904U28 28" Deep 4U Roto Shock Rack
  • Black
  • SKB Lifetime Limited Warranty