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Antec ST20M Mid Tower Case + 550W Power Supply

Antec ST20M Mid Tower Case + 550W Power Supply

SKU:CAA-ST20MVPA55AU

The Antec ST20M is a compact mid-tower case designed for micro-ATX and ITX builds. Featuring a pre-installed 550W Active PFC power supply, USB 3.0 connectivity, and support for GPUs up to 265mm, it delivers reliable performance for small-form-factor PC builds.
Regular price $117.04 AUD
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Product Information

BrandAntec
CategoryCases & Accessories
SKUCAA-ST20MVPA55AU
AvailabilityIn Stock
Antec ST20M Mid Tower Case + 550W Power Supply$117.04
$117.04
Overview
  • The Antec ST20M is a well-engineered mid-tower case that combines compact dimensions with practical build flexibility. The integrated 550W power supply with Active PFC eliminates the need for separate procurement, reducing setup complexity and cost for small business deployments and custom builds.

    Designed for micro-ATX and ITX motherboards, this case accommodates modern graphics cards up to 265mm and CPU coolers up to 150mm, making it suitable for contemporary hardware configurations. The front-facing USB 3.0 port provides fast data transfer, while multiple drive bays support both 3.5" and 2.5" storage drives.

    At just 275 x 180 x 352mm, the ST20M fits easily into space-constrained environments such as office desks or retail counters. The single 120mm rear fan provides adequate airflow for typical business workloads, whilst protection features including Over-Voltage, Short-Circuit, and Over-Power protection safeguard connected components.
Specifications
Case_Form_FactorMid Tower
Case_MaterialSteel
Case_Dimensions275 x 180 x 352mm (W x D x H)
Case_Weight_Net2.01kg
Case_Weight_Gross2.48kg
Motherboard_SupportMicro-ATX, Mini-ITX
Expansion_Slots4
Drive_Bays_3_5_inch1
Drive_Bays_2_5_inch1
Max_GPU_Length265mm
Max_CPU_Cooler_Height150mm
Max_PSU_Length160mm
Front_Panel_USB1x USB 3.0, 1x USB 2.0
Front_Panel_AudioHeadphone/Microphone combo jack
Front_Panel_ControlsPower button, Reset button
Included_Fans1x 120mm rear exhaust fan
Fan_Support_Rear1x 120mm
PSU_ModelVPA550P (Safe Model V3000A175EC-26)
PSU_Capacity550W
PSU_TypeATX 12V 2.3
PSU_ModularNon-modular
PSU_Fan120mm silent fan
PSU_Input_Voltage200-240V AC
PSU_Input_Current4A maximum
PSU_Input_Frequency50-60Hz
PSU_PFCActive PFC
PSU_ProtectionOVP, SCP, OPP, NLO
PSU_Power_Good_Signal100-500ms
PSU_Operating_Temperature0-30°C
PSU_Connectors1x 24-pin motherboard, 1x 8-pin CPU, 2x 8-pin PCIe, 6x SATA, 2x Molex
PSU_Dimensions140 x 150 x 86mm (L x W x H)
Regulatory_CertificationsCB, CE
Warranty12 months
Key Features
Pre-installed 550W Active PFC power supply
Supports micro-ATX and ITX motherboards
USB 3.0 and USB 2.0 front panel connectivity
GPU clearance up to 265mm
CPU cooler clearance up to 150mm
Single 120mm rear exhaust fan included
4 expansion slots with 1x 3.5" and 1x 2.5" drive bays
12-month warranty
Ideal For
Small-form-factor PC builds and compact workstations
Home office and entry-level business systems
Budget-conscious builders seeking integrated power supply
ITX gaming and media centre PCs
Businesses requiring space-efficient desktop solutions
FAQs
Is the power supply included with the Antec ST20M case?

Yes, the Antec ST20M comes with a pre-installed 550W VPA550P power supply, eliminating the need to purchase a PSU separately.

What motherboard types does the ST20M support?

The ST20M supports both Micro-ATX and Mini-ITX motherboards, making it ideal for compact builds whilst offering more expansion options than standard ITX cases.

Can I fit a modern graphics card in this case?

Yes, the case supports graphics cards up to 265mm in length, which accommodates most modern mid-range and entry-level graphics cards.

How much storage can I add to the ST20M?

The case provides 1x 3.5" bay for mechanical hard drives and 1x 2.5" bay for SSDs or additional drives, with 4 total expansion slots available.

What cooling does the ST20M include?

The case includes a single 120mm rear exhaust fan. Airflow is suitable for typical business workloads, though additional case fans can be added if required.

Does the 550W power supply provide sufficient power for a typical business PC?

Yes, a 550W supply is adequate for Micro-ATX and ITX systems with modest graphics cards and storage. For systems with high-end GPUs, a larger PSU may be required.

What connectors does the VPA550P power supply include?

The PSU includes 1x 24-pin motherboard connector, 1x 8-pin CPU connector, 2x 8-pin PCIe connectors, 6x SATA connectors, and 2x Molex connectors.

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