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Thermaltake Core G21 Mid-Tower Case

  • Tempered Glass Window
  • Fully Modular Concept
  • Power Supply Cover For A Clean Build
  • Excellent Expandability
  • Superior Cooling Capability

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QuickFind: 828883

Mfr part code: CA-1I4-00M1WN-00

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    Thermaltake Core G21 Mid-Tower Case Product Description

    Thermaltake Core G21 Tempered Glass Edition Mid-Tower Chassis

    The Core G21 Tempered Glass Edition Mid-Tower Chassis features durable 4mm thick tempered glass windows, a built-in power supply cover for clean cable management, and its excellent expandability and ventilation for high-end gaming configurations. The Core G21 TG supports the latest PC hardware, including the most advanced graphic cards, and air/liquid cooling solutions. Build your ultimate dream rig with Thermaltake Core G21 TG Edition!

    Tt LCS Certified

    Tt LCS Certified is a Thermaltake exclusive certification applied to only products that pass the design and hardcore enthusiasts standards that a true LCS chassis should be held to. The Tt LCS certification was created so that we at Thermaltake can designate to all power users which chassis have been tested to be best compatible with extreme liquid cooling configurations to ensure you get the best performance from the best features and fitment.

    Left and Right 4mm Thick Tempered Glass Window Design

    Premium-quality 4mm thick tempered glass guarantees the durability of the window; moreover, the two-panel tempered glass design permits users to admire their system from either left side or right side.

    Fully Modular Concept

    The fully modular drive brackets provide the ease of installation/removal and maximize the interior space for custom cooling loop. Especially, the tool-less drive bay design allows users to freely interchange the 3.5" and 2.5" hard-drives to suit their particular needs.

    Power Supply Cover For A Clean Build

    Designed for advanced cable management, the pre-mounted PSU shroud allows the entire bottom area of the case to be used to reorganize unused cables.

    Excellent Expandability

    The Core G21 TG features its roomy installation space for high-end PC hardware. It supports a tower CPU cooler with maximum height 160mm, and a dual expansion slot VGA of up to 410mm in length. Moreover, it has the ability to accommodate multiple 3.5"/2.5" storage devices.

    Superior Cooling Capability

    The Core G21 TG is optimized for fast ventilation, along with its support for advanced liquid cooling solutions. With a mesh panel design, the case can house up to triple 120mm or dual 140mm intake fans plus an included 120mm exhaust fan that provide efficient airflow for the system.



    • Dimension (H x W x D) 476 x 208 x 471 mm
    • Net Weight 8.05 kg / 17.74 lb
    • Side Panel 4mm Tempered Glass x 2 (Left & Right)
    • Color Exterior & Interior: Black
    • Material SPCC
    • Cooling System Rear (exhaust) :120 x 120 x 25 mm fan (1000rpm, 16dBA)
    • Drive Bays -Accessible -Hidden -2 x 2.5'' ; 2 x 3.5'' or 2 x 2.5''
    • Expansion Slots 7
    • Motherboards   6.7" x 6.7" (Mini ITX), 9.6" x 9.6" (Micro ATX), 12" x 9.6" (ATX)
    • I/O Port USB 3.0 x 2, HD Audio x 1
    • PSU Standard PS2 PSU (optional)


    • CPU cooler height limitation: 160mm
    • VGA length limitation: 410mm
    • PSU length limitation: 220mm

    Fan Support


    • 3 x 120mm,
    • 2 x 140mm


    • 1 x 120mm,
    • 1 x 140mm


    • 1 x 120mm


    • 1x 120mm


    Radiator Support


    • 1 x 360mm,
    • 1 x 280mm


    • 1 x 120mm

    Add-ons and Accessories


    £25.26 inc. vat
    £29.99save £4.73
    £21.05 ex. vat
    £24.99save £3.94


    £43.46 inc. vat
    £36.21 ex. vat

    Technical Specifications


    Form Factor Mid tower
    Max Mainboard Size ATX
    Supported Motherboards ATX, microATX, Mini-ATX
    Specification Compliance PS/2
    Internal Bays Qty 4
    Product Material Tempered glass, SPCC steel
    Colour Black
    Cooling System Rear: 120 x 120 x 25 mm fan x 1 / exhaust / 1000 rpm / 16 dBA ¦ Front: 120/140 mm fan mount / 2 x 140 mm fan or 3 x 120 mm fan supported ¦ Top: 120/140 mm fan mount x 1 ¦ Rear: 120 mm fan mount x 1 ¦ Bottom: 120 mm fan mount x 1
    CPU Cooler Max Height 160 mm
    Video Card Max Length 410 mm
    System Cabinet Features Supports 120 mm radiator in rear, tempered glass side panel, supports 280/360 mm radiator in front panel

    Expansion / Connectivity

    Expansion Bays 2 (total) / 2 (free) x internal - 2.5" ¦ 2 (total) / 2 (free) x internal - 2.5" / 3.5" shared
    Expansion Slots 7
    Interfaces 2 x USB 3.0 ¦ 1 x headphones - mini-jack ¦ 1 x microphone - mini-jack


    Power Device No power supply

    Dimensions & Weight

    Width 20.8 cm
    Depth 47.1 cm
    Height 47.6 cm
    Weight 8.05 kg

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