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iStarUSA S-21 Compact Stylish Mini-ITX Enclosure

BH #ISS21 • MFR #S-21
2 reviews
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iStarUSA S-21 Compact Stylish Mini-ITX Enclosure
Key Features
  • Holds 2x 2.5" HDDs or 1x 3.5" HDD
  • 2x Front Access USB 2.0 & I/O Ports
  • 80mm Optional Cooling Fan
  • Cold-Rolled Steel Enclosure
The S-21 Compact Stylish Mini-ITX Enclosure from iStarUSA offers high capacity and extreme performance. It is specifically designed for use in the entertainment and industrial fields. It is compatible with next generation cooling performance and the full range of 6.7 x 6.7" (17 x 17 cm) Mini-ITX motherboards. Its main chassis is made of cold-rolled steel that can hold either two 2.5" hard disk drives or one 3.5"* hard disk drive. It is crafted with a smooth aluminum front panel to achieve a generous feeling of substance by minimizing gaps and holes. Moreover, the enclosure is RoHS compliant.
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Expected availability: 7-10 Business Days
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$149.57
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iStarUSA S-21 Overview

The S-21 Compact Stylish Mini-ITX Enclosure from iStarUSA offers high capacity and extreme performance. It is specifically designed for use in the entertainment and industrial fields. It is compatible with next generation cooling performance and the full range of 6.7 x 6.7" (17 x 17 cm) Mini-ITX motherboards. Its main chassis is made of cold-rolled steel that can hold either two 2.5" hard disk drives or one 3.5"* hard disk drive. It is crafted with a smooth aluminum front panel to achieve a generous feeling of substance by minimizing gaps and holes. Moreover, the enclosure is RoHS compliant.

The enclosure features two front access USB 2.0 ports, LEDs for power on and HDD activity, power and alarm reset switches, a full height expansion slot (riser card required) and one optional 80mm ball bearing cooling fan for whisper quiet operation. Its strategically placed side ventilation protects the equipment from heat damage. Everything in this enclosure is either covered or hidden that makes it look clean.

Note:
*3.5" HDD can't be mounted when add-on card is in place.
The main chassis of the compact, stylish enclosure is made of cold-rolled steel that can hold either two 2.5" HDDs or one 3.5" HDD
The enclosure features two front access USB 2.0 input/output ports, LEDs for power on and HDD activity, power and alarm reset switches and a full height expansion slot (riser card required)
An optional 80mm ball bearing cooling fan provides whisper quiet operation and its strategically placed side ventilation protects the equipment from heat damage
The enclosure has a smooth aluminum front panel crafted with a contemporary touch to achieve a generous feeling of substance by minimizing gaps and holes
It is compatible with the next generation cooling performance and full range of 6.7 x 6.7" (17 x 17 cm) Mini-ITX motherboards
The enclosure is RoHS compliant
UPC: 846813023054

iStarUSA S-21 Specs

Key Specs
Motherboard Support
Mini-ITX
Internal Drive Bays
2x 2.5"
Expansion Slots
1x Full Height Horizontal
CPU Cooler Height
2.56" / 65 mm
Fans Included
No
I/O
2x USB-A (USB 2.0)
Windowed Panel
No
Compatibility
Motherboard Support
Mini-ITX
External Drive Bays
No
Internal Drive Bays
2x 2.5"
Expansion Slots
1x Full Height Horizontal
CPU Cooler Height
2.56" / 65 mm
Supported PSU Size
1U
Maximum PSU Length
5.9" / 149.86 mm
PSU Mounting Location
Side
Cooling
Fan Mounting
No
Fans Included
No
Fan Controller Included
No
Filters Included
No
Inputs / Outputs
I/O
2x USB-A (USB 2.0)
Physical
Windowed Panel
No
Color
Black
Material
Aluminum, Steel
Built-In Lighting
No
Tool-Less Design
No
Security
No
Cable Management Space
No
Dimensions (W x H x D)
8.9 x 3.5 x 8.3" / 22.6 x 8.9 x 21.1 cm
Weight
3 lb / 1.4 kg
Packaging Info
Package Weight
3.85 lb
Box Dimensions (LxWxH)
11.8 x 10.2 x 4.4"

iStarUSA S-21 Reviews

Solidly Built

By Evan
Rated 4 out of 5
Date: 2022-11-14

This is a great compact case. It is exceptionally well built for the price. Ventilation could be better. I cut a hole in the top to mount a 120 mm fan that blows onto the CPU heatsink. Had to sacrifice the HDD mounts for that, but I didn't need those mounts anyway.

Sturdy, high quality case, airflow is another story

By KHOA
Rated 3 out of 5
Date: 2020-02-18

Using this for a pfsense build. Airflow is non-existent. The top cover could have been perforated and it would be okay. The front exhaust 80mm fan (they recommend you to use a slim version at 15mm) is almost completely blocked by the front design. The inlet 60mm fan would be blocked by the PCI riser card. I find these design choices very confusing. Fix these issues and this would be a totally 5 star case. It's one of the few on the market that's mini-itx and has an expansion slot! But such a bummer it has airflow issues.

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