Jonsbo/Cooltek RM3 and UMX4

Phuncz

Lord of the Boards
Original poster
Editorial Staff
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Gold Supporter
May 9, 2015
4,843
4,317
A few people have modded a Jonsbo case because of lacking airflow and cooling potential, but the company has responded in kind with these larger models:





UMX4 - ATX form factor


Dimensions: 204mm (W) * 426mm (D) * 437mm (H) (38L volume)
Material: Body: 2.0mm Aluminum Magnesium Alloy, Internal Structure :1.0mm SGCC Steel Plate, Side Plate:2.0mm Aluminum
Motherboard: ATX / MATX / ITX (Within 305mm x 245mm)
Drive Bay: 2 * 3.5", 4 * 2.5"
Cooling System: Front: none, Top: 2 x 120mm fan, Back:1 x 120mm fan, Bottom:2 x 120mm fan (optional)
CPU Cooler: up to 162mm
Display Card: up to 310mm
Front I/O: USB3.0 x 2, USB2.0 x 2, Audio x 1, Mic x 1
Power Supply: ATX PSU
Expansion Slot: 7 slots
NET/Gross Weight: 7.15kg / 9.6kg






RM3 - mATX form factor

Dimensions: 215mm (W) * 336mm (D) * 385mm (H) (28L volume)
Material: Internal Structure: 1.0mm SGCC Steel Plate, Front Plate: 4.0mm Aluminum, Side Plates: 5.0mm Tempered Glass, Back/Top/Bottom Plate: 1.5+2.0mm Aluminum
Motherboard: MATX / ITX (Within 245mm x 245mm)
Drive Bay: 2 * 3.5", 3 * 2.5" or 5 * 2.5"
Cooling System: Top: 1 x 140mm fan, Back/Bottom:1 x 120mm fan
CPU Cooler: up to 170mm
Display Card: up to 310mm (up to 285mm if HDD is installed)
Front I/O: USB3.0 x 2, Audio x 1, Mic x 1
Power Supply: ATX PSU
Expansion Slot: 4
NET/Gross Weight: 7.3kg / 9.5kg

While still large and not really SFF-sized, I am pleased to see the cooling potential they now have, especially with the ATX case. I like these designs, I just wished they'd default to SFX-L support.
 

IntoxicatedPuma

Customizer of Titles
Editorial Staff
Silver Supporter
Feb 26, 2016
985
1,244
I've build two PC's with the RM3 last fall. It is pretty small (not super small but small enough!) and the quality is very good. Cooling seemed good enough too.