Antec ISK110 VESA Case Review

Main Specifications

Due to its unusually small size, the ISK110 VESA doesn’t support an internal power supply, coming with an external 90 W power supply manufactured by Delta Electronics. According to Antec, this power supply provides efficiency up to 92 percent.

Figure 13: The 90 W external power supply

This power supply only provides 19 V. A DC-DC converter available inside the case provides the voltages and connectors required by the computer’s components. This converter is based on a APU3048 PWM controller, using a pair of STD85N3L MOSFETs for each positive output, and a PS222S monitoring integrated circuit. The converter uses Japanese capacitors from Chemi-Con.

The current limits for the DC-DC converter are shown in the table below.

Output	Current Limit
+12 V	5 A
+5 V	6 A
+3.3 V	5 A
+5VSB	1.5 A
-12 V	0.1 A

Figure 14: The internal DC-DC converter