4U 20 Slots Industrial PC Rackmount Chassis


  • Patented Aluminum Front Panel with Locks,Taiwan: 200281 / 190240 , China: 2L01259648.5
  • 20 Slot Backplane
  • Power and Alarm Reset Switch
  • Power and HDD LED
  • Removable Air Filter
  • 120mm x3 Cooling Fan
  • Front Access USB2.0 x2

The D-420L rackmount chassis is designed for industrial computing. D-420L is a full size 4U chassis with 20 slots backplane support full-length and full-heights add-on cards. D-420L can be used across many industries such as telecommunication, automation, and control system applications. D-420L also has excellent thermal solution with 3x120mm hot-swappable fans that ensure system optimal cooling and continuous operations.

Model NumberD-420L
RoHS Compliance VersionYes
Standard Drive Bays
  • 3.5" Drive:
  • 1
  • 3.5" Drive (internal):
  • 2
  • 5.25" Drive:
  • 4
Backplane20 Slots
IndicatorsLEDs for Power ON/OFF, HDD, Fan & Alarm
SwitchesPower ON/OFF, System & Alarm Reset
Air FilterRemovable & Washable
SecurityFront Bezel
SpeakerOptional 0.4W
Material of Front BezelAluminum alloy
Material of Handle1.2mm SECC Zinc-Coated Steel
Material of Main Chassis1.2mm SECC Zinc-Coated Steel ( Japan Made )
Color of Front BezelBlack / Red / Blue / Silver / Gold
Color of Main ChassisBlack
Front ConnectorFront USB 2.0 x 2 Connector
Model Number in Different PSU TypeD-420L-FS: Standard ATX PSU
D-420L-FR: Redundant PSU
Dimension (W x H x D)19 x 7 x 27.9 inches
481.8 x 176.8 x 708.5 mm
Motherboard Size12 x 13 (E-ATX, ATX, micro-ATX)
Cooling Fan [optional]3x120mm
Download Type File Size (KB) Last Updated
Datasheet280101072011
Drawing38107292010
User Manual178907292009
Air Filter UL Certificate17406282008
IS-550R8P-F550W Front Mounting PS2 Mini Redundant Power Supply-
TC-580PD3580W PS2 ATX Switching Power Supply-
TC-620PD3620W PS2 ATX Switching Power Supply-
TC-750PD1750W PS2 ATX Switching Power Supply-
TC-850PD1850W PS2 ATX Switching Power Supply-
TC-1020PD11020W PS2 ATX Switching Power Supply-
Cage & HDD Brackets
RP-HDD25P2.5" HDD SSD Mounting Bracket for 3.5" Bay
RHF-033.5" to 5.25" Hard Drive Mounting Bracket
RP-4HDD25F2.5” Hard Drives Slot Bracket
RP-COMBO-SLIM5.25" Optical Drive and Floppy Drive Cage Holder
RP-Combo-Slim25352.5"/ 3.5" HDD & Slim Optical Drive to 5.25" Drive Bay Cage
RP-FDD353.5" to 5.25" Floppy Drive Mounting Bracket
RP-HDD2.52.5" to 3.5" Hard Drive Mounting Bracket
RP-HDD25BC2.5" HDD SSD Mounting Bracket for 3.5" Bay
RP-HDD3.53.5" to 5.25" Hard Drive Mounting Bracket
TC-iStorm72x5.25" to 3x3.5" Internal Mounting Cooling Kit with Removable Filter
RP-HDD2535F5.25" Drive Bay Cooling System for Hard Drive
TC-iStorm81x5.25" Hard Drive Cooling Heat Sink
Computer Tools
RP-Reader35All-in-one USB 2.0 Card Reader
RP-HUB-SAUF3.5" Combo Hub for USB2.0/ Firewire/ e-SATA
Fans & Parts
DD-Fan8080mm Ball Bearing Fan
TC-ISF088 Ports Fan Sensor Board
Rails & Supporters
TC-Rail-2424" Sliding Rail Kit for Most Rackmount Chassis
TC-Rail-2626" Sliding Rail Kit for Most Rackmount Chassis
Hot-swap HDD Cage - SATA/SAS
T-7M1-SATA1x5.25" Bay Audio SATA/SAS 6.0 Gb/s Mobile Rack
T-7-SA1x5.25" Bay Military Series SAS/SATA 6.0Gb/s Mobile Rack
T5F-SS1x5.25" Bay Trayless Anti-vibration SAS/SATA Mobile Rack
BPN-350V2-SS3x5.25" to 5x3.5" SATA/SAS Trayless Hot-Swap Cage
BPU-340SATA3x5.25" to 4x3.5" SAS/SATA 6.0 Gb/s Hot-Swap Cage
BPU-230SATA2x5.25" to 3x3.5" SAS/SATA 6.0 Gb/s Hot-Swap Cage
BPU-124V2-SS1 x 5.25" to 4 x 2.5" SATA/SAS 6.0 Gb/s Hot-Swap Cage
Hot-swap HDD Cage - SATA
T5-SA1x5.25" Bay Trayless Anti-vibration SATA Mobile Rack
T5PF-SA1 x 5.25" Bay Trayless Anti-vibration SATA Mobile Rack
BPU-2535V21 x 3.5" to 2 x 2.5" SATA I/II Hot-Swap Drive Cage
BPU-2535-SI1 x 3.5" to 1 x 2.5" SATA I/II Hot-Swap Drive Cage
BPU-126-SA1 x 5.25" to 6 x 2.5" SATA 6.0 Gb/s Hot-Swap Cage
T-25HD-SI2.5" SATA I/II Hard Drive Slot Carrier