ASUS A21 White Micro ATX PC Case Supports BTF Hidden Connector Technology
Status: ASUS A21 White Micro ATX PC Case Supports BTF…: Unavailable on Amazon as of . SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.
Bottom line: The ASUS A21 White Micro ATX PC Case Supports BTF Hidden Connector is a specs-and-price decision rather than a crowd-consensus one in the pc cases category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:
Similar: ASUS Prime AP201 Black Micro ATX PC Case — $79.99 on Amazon as of 2026-10-07 04:23 UTC (price may vary).
Similar: ASUS TUF Gaming GT502 ATX Full Tower PC Case — $160.99 on Amazon as of 2026-10-06 22:21 UTC (price may vary).
Similar: ASUS TUF Gaming GT502 White ATX Full Tower PC Case — $173.99 on Amazon as of 2026-10-07 04:14 UTC (price may vary).
Before you buy
- Confirm socket / form-factor / power-rating compatibility against your build before ordering
- Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
ASUS A21 Micro-ATX Case White Edition includes the all new BTF hidden connector technology by ASUS to maximize clean cable management while delivering improved airflow via mesh front-panel, support for Graphics Cards up to 380mm, 360mm Coolers, & Standard ATX PSUs.
SpecPicks Verdict
SpecPicks scored ASUS A21 White Micro ATX PC Case Supports BTF Hidden Connector… using a rating × review-volume × price-fit model applied to published specs and reviews across the pc cases category. Compare with similarly-priced alternatives in the pc cases category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for pc cases of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Hidden Connectors: ASUS A21 is compatible with BTF hidden connector motherboards to maximize clean cable management
- Broad Compatibility: A21 supports up to 360 mm radiators, graphics cards up to 380 mm in length and CPU air coolers up to 165 mm in height
- Capable Cooling: The front-panel mesh is 40% porous to maximize the balance of airflow, dust filtering and RGB visibility
- Ample Cable Management: The A21 provides a compartment behind the motherboard that is 33 mm wide to keep your wiring tucked away and tidy
- Color-coordinated Builds: ASUS A21 comes with color-coordinated black or white internal I/O cables to compliment your build theme
Full Specifications
| Brand | ASUS |
|---|---|
| Color | A21 ASUS CASE/WHT |
| Fan Size | 120 Millimeters |
| Material | not specified or unknown |
| Case Type | Mid Tower |
| Model Name | A21 ASUS CASE/WHT |
| Unit Count | 1.0 Count |
| Model Number | 90DC00H3-B08000 |
| Compatibility | PC |
| Built-In Media | A21/WHT// Mid-Tower Computer Chassis |
| Cooling Method | Air |
| Capable Cooling | The front-panel mesh is 40% porous to maximize the balance of airflow, dust filtering and RGB visibility |
| Mfr Part Number | 90DC00H3-B08000 |
| Total Usb Ports | 2 |
| Antenna Location | Gaming |
| Hidden Connectors | ASUS A21 is compatible with BTF hidden connector motherboards to maximize clean cable management |
| Compatible Devices | Desktop, Motherboard, cooler, graphics card |
| Enclosure Material | not specified or unknown |
| Broad Compatibility | A21 supports up to 360 mm radiators, graphics cards up to 380 mm in length and CPU air coolers up to 165 mm in height |
| Total USB 2.0 Ports | 2 |
| Full listing title | ASUS A21 White Micro ATX PC Case Supports BTF Hidden Connector Technology, Graphics Cards up to 380mm, 360mm Coolers, & ATX PSUs, Includes Porous Front-Panel mesh, 2 Year Warranty |
Ready to buy?
Amazon shows no buyable offer for ASUS A21 White Micro ATX PC Case Supports BTF… at the last check. A similar in-stock product is ASUS Prime AP201 Black Micro ATX PC Case. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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