E420B 4U BLACK ATX I/O FRONT-ACCESS CHASSIS
 Design and 1st production and shipment launched on October 14, 2008, webpage updated on December 23, 2025

 

E420B is designed as a durable and strong mechanism, all sheet metal's edge and surface are very smooth when system integration, combining ultra cool thermal-free design and short depth, it's suitable for the enterprise server system and supervisor's system control management, using the newest front-accessible I/O design, it's very convenient to manage the cable routing or maintenance without opening the rear door of cabinet, through the 355mm shortest depth of chassis, it can load two set of chassis in one 4U layer of the cabinet, saving the most efficient space for your valuable and limited cabinet inside. As to the motherboard compatibility, it fits all 12"x9.6" ATX form factor motherboard in the market, also by the absolute cost-efficient price, it's suitable for the worldwide distributor and wholesale market.

 

             

 

            

 

* Totally 8 drive bay:
   2 x 5.25" ODD (not installable if 5.25" devices have no mounting holes at bottom)

   6 x 3.5" HDD (some 3.5" FDD devices installable at bottom of this ODD space)

* The main sheet metal constructed by 1.2mm~2.0mm SGCC mechanism

* Two USB 2.0 ports and LAN/HDD/Power LED at front bezel (two USB 3.0 as option)
* One SUNTAi 120mmx25mm exhaust 2-ball bearing fan at side (cool down CPU)
* Two SUNTAi 80mmx25mm exhaust 2-ball bearing fans at side (cool down HDD)
* All in one fan wire PCB to keep fast system maintenance
* Compatible motherboard: ATX(12"x9.6"), MicroATX(9.6"x9.6"), Mini-ITX(6.7"x6.7")
* 8cm or 12cm~14cm fan version standard PS2 PSU compatible (max. depth at 185mm)
* SureStar R4S PS2 400W and 500W Mini Redundant PSU compatible (depth at 174mm)
* Zippy MRT & MRW PS2 Mini Redundant PSU (depth at 185mm, front & rear fixed)
* 7-slot full height cards max. 255mm deep (PCB higher than L bracket not allowed)
* Standard paint: scratch-resistant black textured at surface of chassis
* Genesys Group chassis with build-in electronics in global 3 years warranty
* Chassis dimension: 19" x 4U x 355mm (14" deep)

* Accessory: screw x65, MB stand-off x7
* Package: NW 6.91 KG, GW 8.51 KG, 2.88 CUFT (carton size at 57x53x27cm)

* Note: Most full height GPU cards with PSU input on top side will not fit with this chassis

Model#

:

E420B

4U black ATX I/O front-access chassis

Option A-1

:

PS2 PSU

Support 8cm & 12cm & 14cm fan version PS2 PSU (compatible power depth at 140~185mm)

Option A-2

:

PS2 RPS

Support SureStar R4S series 400W/500W PS2 Mini Redundant PS (depth at 174mm)

Option A-3

:

PS2 RPS

Support Zippy MRT & MRW series PS2 Mini Redundant power supply (depth at 185mm)

Option B

:

FAN

Two exhaust 50mmx25mm fans installed above I/O shield of rear panel

Option C-1

:

NJ-600

600mm 2-layer 3-travel universal rail (cabinet internal depth 600~1200mm compliant)

Option C-2

:

1234U-RMK

1234U rear mounting kit (part# is 1 pair)

Option D

:

25-35-BK

1x5.25" to 1x3.5" HDD or 1x3.5" to two 2.5" SSD bracket

Option E

:

3.5" mobile rack

3.5" FDD space HotSwap SSD / HDD mobile rack

Option F

:

5.25" mobile rack

5.25" space HotSwap SSD / HDD mobile rack

Option G

:

Storage cable

Storage cable

Option H

:

2U CPU COOLER

2U CPU coolers (2U 3U 4U chassis compatible)
       
     

Catalogue      Dimension Drawing