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
Form Factor
Micro Tower
Motherboard
Micro ATX,Mini-ITX
Side Panel
Window Panel
Max GPU
380 mm
Max Cooler
165 mm
Front fans installed
3x 120 mm
Rear fans installed
1x 120 mm
Colour
Black
View 42 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 42

All values come from this product’s catalog record.
Form factor
Micro Tower
Supported board sizes
Micro ATX,Mini-ITX
Side window
Yes
Maximum graphics card length
380
Maximum CPU cooler height
165
Front fans installed
3x 120 mm
Rear fans installed
1x 120 mm
Type
PC
Colour
Black
Depth
430 mm
Width
220 mm
Height
465 mm
Weight
8100 g
Illumination
Yes
Suitable for
Gaming
HDD/SSD combo cage
Yes
Maximum PSU length
210
Illumination colour
Multi
Number of 2.5" bays
1
Number of 3.5" bays
2
Supported HDD sizes
2.5,3.5
Number of 5.25" bays
0
Power supply included
No
USB 2.0 ports
0
Liquid cooling capability
Yes
Number of expansion slots
5
Top fans diameters supported
120,140
Top radiator sizes supported
120,140,240,280,360
Show all 42 specifications
Rear fans diameters supported
120
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
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
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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