ASUS logo MPN: 90DC00H0-B19010

ASUS A21 PLUS Micro Tower Black

ASUS
Released: Not on record
$188.75
Amazon.com (US)
Updated 2 months ago · Compare Retailers USD pricing from verified retailers · Excl. sales tax
View price history ↓
4.7 / 5 (53 ratings)
View reviews breakdown
Type
PC
Depth
430 mm
Width
220 mm
Height
465 mm
Weight
8100 g
Form factor
Micro Tower
Side window
Y
Illumination
Y
Suitable for
Gaming
View 49 specifications

Overview

The ASUS A21 PLUS microATX case offers support for hidden-connector motherboards, 360 mm radiators and 380 mm graphics cards, with two color options, four pre-installed ARGB fans and clean cable management.

Compatibility

Form factor Micro Tower

Compatibility data is automatically generated. Always verify critical specs before purchase.

Technical Specifications

Showing 28 key specifications of 49

All values come from this product’s catalog record.
Type
PC
Depth
430 mm
Width
220 mm
Height
465 mm
Weight
8100 g
Form factor
Micro Tower
Side window
Yes
Illumination
Yes
Suitable for
Gaming
Colour
Black
HDD/SSD combo cage
Yes
Maximum PSU length
210
Illumination colour
Multi
Number of 2.5" bays
1
Number of 3.5" bays
2
Rear fans installed
1x 120 mm
Supported HDD sizes
2.5,3.5
Front fans installed
3x 120 mm
Number of 5.25" bays
0
Power supply included
No
USB 2.0 ports
0
Liquid cooling capability
Yes
Maximum CPU cooler height
165
Number of expansion slots
5
Maximum graphics card length
380
Top fans diameters supported
120,140
Top radiator sizes supported
120,140,240,280,360
Rear fans diameters supported
120
Show all 49 specifications
Rear radiator sizes supported
120
Front fans diameters supported
120,140
Front radiator sizes supported
120,140,240,280,360
Number of top fans supported (max)
3
Supported board sizes
Micro ATX,Mini-ITX
Number of rear fans supported (max)
1
Number of front fans supported (max)
3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
0
buildcores_verified
1
buildcores_opendb_id
4001f1ce-d740-4961-9284-fe3a76890ccc
buildcores_category
PCCase
max_gpu_length_mm
380
max_cooler_height_mm
165
max_psu_length_mm
210
form_factor
Micro ATX Mini Tower
Package depth
288 mm
Package width
525 mm
Package height
493 mm
Package weight
9800 g

Not ranked yet

Awaiting Benchmark Run

No joined ranking record is available for this product. Products enter category rankings automatically once verified benchmark and price records are indexed.

Market Value History

Latest Spot: $188.75
30D Average
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90D Average
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1Y Low / High
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Historical Delta
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Raw Price History Records75 data points
DatePrice
2026-08-25$188.75
2026-08-22$188.75
2026-07-30$193.96
2026-07-13$193.95
2026-06-04$322.56
2026-05-25$324.56
2026-05-23$322.56
2026-03-23$303.35
2026-03-16$302.15
2026-03-09$302.95
2026-03-02$305.41
2026-02-25$301.87
2026-02-18$150.12
2026-02-10$226.77
2026-01-28$223.58
2026-01-19$219.82
2026-01-13$210.40
2026-01-05$210.40
2025-12-29$203.92
2025-12-22$203.92
2025-12-16$203.92
2025-12-08$202.40
2025-12-01$203.92
2025-11-24$220.67
2025-11-17$220.67
2025-11-10$212.49
2025-11-03$229.09
2025-10-27$231.00
2025-10-20$205.30
2025-10-13$148.99
2025-10-06$154.09
2025-09-29$160.44
2025-09-22$155.81
2025-09-15$160.28
2025-09-08$149.78
2025-09-01$148.24
2025-08-25$151.08
2025-08-18$149.78
2025-08-11$149.78
2025-08-04$145.20
2025-07-30$145.20
2025-07-21$145.20
2025-07-14$145.18
2025-07-07$145.20
2025-07-01$145.70
2025-06-23$148.70
2025-06-17$148.49
2025-06-09$140.81
2025-06-02$140.82
2025-05-28$140.82
2025-05-20$140.82
2025-05-14$141.95
2025-05-05$141.95
2025-05-03$141.95
2025-04-21$142.19
2025-04-15$92.17
2025-04-08$80.78
2025-04-04$81.74
2025-03-25$79.95
2025-03-12$111.62
2025-03-04$107.34
2025-02-28$118.80
2025-02-12$76.24
2025-02-03$75.31
2025-01-27$86.47
2025-01-21$76.59
2025-01-13$75.81
2025-01-08$114.18
2024-12-30$101.22
2024-12-24$99.90
2024-12-18$100.10
2024-12-14$97.99
2024-12-05$98.43
2024-11-28$78.18
2024-10-31$80.71

Customer Reviews & Feedback

Verified Amazon Score
4.7 / 5.0

Based on 53 verified customer reviews on Amazon US.

5 star
90%
4 star
7%
3 star
2%
2 star
1%
1 star
1%

Review Verification

Hardware Quest synchronizes these ratings daily with Amazon to reflect real buyer experiences, build quality, and long-term reliability.

Verified Retailers & Price Comparison

Verified Amazon US pricing, transparent seller identity, and real-time fulfillment telemetry via Keepa.

1 Stores Tracked
Amazon US Lowest Price
In Stock · Amazon.com (Direct)
$188.75 Free Prime Delivery
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Sources

Product lifecycle

Catalog: on-market

The current catalog record marks this product as on-market; this is not independent manufacturer confirmation.

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