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Yellow and black Micro-ATX tower case with three tempered glass panels and two top-mounted 140mm fans

Thermaltake

Thermaltake Tower 300 Bumblebee Micro-ATX Case CA-1Y4-00S4WN-00

SKU CH-2ZD7-B9R46 MPN CA-1Y4-00S4WN-00

Micro-ATX tower with three tempered-glass panels, two pre-installed 140 mm fans and support for a 420 mm radiator

  • TypeMicro-ATX Tower Chassis
  • ColorBumblebee
  • Case MaterialSPCC
  • With Power SupplyNo
  • Power Supply MountedBottom
  • Motherboard CompatibilityMini ITX (6.7" x 6.7") Micro ATX (9.6" x 9.6")

Options BumbleBee

  • Three-sided tempered glass panels showcase internal components
  • Two pre-installed 140 mm fans deliver immediate airflow
  • Supports radiators up to 420 mm for high-capacity liquid cooling
  • Fits graphics cards up to 400 mm when the right side is free
  • Micro-ATX and Mini-ITX motherboards install in a compact vertical layout

Micro-ATX Tower for Showcase Builds

The Tower 300 Bumblebee is a Micro-ATX chassis finished in a distinctive yellow-and-black colour scheme. It accepts Mini-ITX and Micro-ATX motherboards, making it suited to compact high-performance systems. Three panels of 3 mm tempered glass on the front, left and right sides give a clear view of internal components. The case ships without a power supply, so the builder provides their own unit.

Cooling Limits With Radiator Placement

A 420 mm or 360 mm radiator can be mounted on the right side in front of the motherboard tray, but doing so reduces the maximum graphics card length from 400 mm to 280 mm. Without a side radiator the full 400 mm GPU clearance is available. The CPU cooler height limit is 210 mm and the power supply compartment accepts units up to 220 mm long. Two 140 mm fans are pre-installed at the top.

Glass Panels and Port Layout

Three tempered-glass panels mean fingerprints are visible and regular cleaning is needed for a pristine look. The front I/O cluster provides one USB 3.2 Gen 2 Type-C port, two USB 3.0 ports and a single audio jack. Three internal 3.5-inch bays and three 2.5-inch bays offer storage flexibility, while four expansion slots support full-height add-in cards. The bottom-mounted power supply layout keeps cables tucked away.

Highlights

  • Three-sided tempered glass panels showcase internal components
  • Two pre-installed 140 mm fans deliver immediate airflow
  • Supports radiators up to 420 mm for high-capacity liquid cooling
  • Fits graphics cards up to 400 mm when the right side is free
  • Micro-ATX and Mini-ITX motherboards install in a compact vertical layout

Specifications

BrandThermaltake
SeriesTower 300 Series
ModelCA-1Y4-00S4WN-00
TypeMicro-ATX Tower Chassis
ColorBumblebee
Case MaterialSPCC
With Power SupplyNo
Power Supply MountedBottom
Motherboard CompatibilityMini ITX (6.7" x 6.7")
Micro ATX (9.6" x 9.6")
Side Panel3mm Thick Tempered Glass x 3 (Front/Left/Right)
Internal 3.5" Drive Bays3
Internal 2.5" Drive Bays3
Expansion Slots4
Front Ports1 x USB 3.2 Gen 2 Type-C, 2 x USB 3.0, 1 x Audio
Fan OptionsTop:
2 x 120mm, 1 x 120mm
2 x 140mm, 1 x 140mm
Rear:
2 x 120mm, 1 x 120mm
2 x 140mm, 1 x 140mm
Right Side(In front of M/B Tray):
3 x 120mm, 2 x 120mm, 1 x 120mm
3 x 140mm, 2 x 140mm, 1 x 140mm
Bottom(On the power cover):
1 x 120mm
1 x 140mm
Pre-installed FansTop - 2 x 140mm
Radiator OptionsRight Side(In front of M/B Tray):
1 x 360mm, 1 x 240mm, 1 x 120mm
1 x 420mm, 1 x 280mm, 1 x 140mm
Max GPU Length280mm(With radiator on the right side) / 400mm(Without radiator on the right side)
Max CPU Cooler Height210 mm
Max PSU Length220 mm
Dimensions22.5 x 14 x 11.5 inch
Weight18.3 lbs
Shipping weight10.30 kg
Package size640 × 411 × 358 mm

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Questions about this item

Will a full-length graphics card fit if I mount a 360 mm radiator on the right side?

With a radiator on the right side the maximum GPU length is 280 mm; without a radiator there it extends to 400 mm.

What motherboard sizes does the chassis support?

The case accepts Mini ITX boards at 6.7 by 6.7 inches and Micro ATX boards at 9.6 by 9.6 inches.

How many drives can I install internally?

You can fit three 3.5 inch drives and three 2.5 inch drives inside the chassis.

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