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Silver 4U rackmount server chassis with three 5.25 inch front drive bays, one 3.5 inch bay, single 120mm fan, sturdy side handles

Chenbro

Chenbro RM42300-F 4U rackmount server chassis

SKU CH-VSWE-W732G MPN RM42300-F

A 4U rackmount server chassis supporting Micro-ATX, ATX and CEB boards with three 5.25" bays, one 3.5" bay and four internal 3.5" bays

  • Form factor4U
  • Chassis styleRackmount
  • Housing material1.2 mm SGCC
  • Supported motherboard sizesMicro-ATX(9.6 inx9.6 in) ATX (12 inx9.6 in) CEB (12 inx10.5
  • 5.25-inch external bays3
  • External 3.5" drive bays1
  • 4U rackmount form factor fits standard server cabinets
  • Supports Micro-ATX, ATX and SSI CEB motherboards up to 12 x 10.5 inches
  • Three external 5.25 inch bays plus one external 3.5 inch bay for removable media
  • Four internal 3.5 inch drive bays with anti-vibration cage, two when using CEB board
  • Seven expansion slots and three fan positions with one 120 mm fan pre-installed

Industrial Server Chassis

The Chenbro RM42300-F is a 4U rackmount server chassis built from 1.2 mm SGCC steel. It supports Micro-ATX, ATX and CEB motherboards up to 12 by 10.5 inches. Seven expansion slots and ten total drive bays provide room for add-in cards and storage arrays. One 120 mm fan ships installed and the frame accepts up to three fans total.

Storage-Focused Builders

This chassis suits integrators who need multiple 5.25 inch and 3.5 inch bays in a 4U rack footprint. The anti-vibration drive cage helps protect mechanical disks during operation. Buyers who require tool-less drive trays or hot-swap backplanes should look at alternative models. Systems needing more than seven expansion slots or dual power supplies will not fit this enclosure.

Motherboard Form Factor Limit

The maximum supported board size is CEB at 12 by 10.5 inches; larger E-ATX or proprietary server boards cannot be mounted. This single dimension decides whether the chassis matches your hardware platform.

How it compares

Measured against everything we stock in Rackmount Server Cases, at today’s prices. Recalculated every night.

Price $165.99
Cheaper than about 72% of the 1,005 comparable items (median $222.99).

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Specifications

Product
Brand nameCHENBRO
Model nameRM42300-F
Storage
5.25-inch external bays3
External 3.5" drive bays1
3.5-inch internal bays4 (CEB board only 2 HDDs)
External slim drive bays1
Ports & slots
Expansion card slots7
Front panel portsUSB
Size & build
Form factor4U
Chassis styleRackmount
Housing material1.2 mm SGCC
Product dimensions17.5 in × 16.9 in × 6.9 in
Shipping weight12.29 kg
Package size465 × 430 × 176 mm
Compatibility
Supported motherboard sizesMicro-ATX(9.6 inx9.6 in)
ATX (12 inx9.6 in)
CEB (12 inx10.5 in)
More details
120mm fan count1

Questions about this item

How can I verify the chassis is cooling properly after installing the single pre-installed 120mm fan and adding up to two more?

Check that all three fan positions spin at startup, monitor motherboard fan-speed readings, and confirm drive-cage temperatures stay within the operating range of your installed drives.

What ships with the RM42300-F and which items such as power supply, rails or extra fans must be purchased separately?

The box contains the 4U rackmount enclosure and one add-on card retainer; power supply, rack rails, additional 120mm fans and any Chenbro storage kits are not included.

Which motherboard form factor should I choose — Micro-ATX, ATX or CEB — to get the full four internal 3.5″ bays?

Only ATX or Micro-ATX boards allow all four internal 3.5″ bays; a CEB board reduces the internal bay count to two.

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