Does the Acer H235H Monitor Support PS/2 Connection?

No. The Acer H235H (23" 1080p LCD, ~2009) has:

• DVI-D (dual-link)
• VGA (D-Sub 15-pin)
• HDMI 1.3 (some regions)

It does not have PS/2 ports (6-pin mini-DIN for keyboard/mouse). Monitors haven't included PS/2 since the early 2000s—PS/2 is a computer peripheral interface, not a video signal.

If You Need PS/2 Support

• Use a PS/2 → USB adapter ($5) to connect your keyboard/mouse to the PC, not the monitor.
• KVM Switch: If sharing one keyboard/mouse/monitor between two PCs, use a USB KVM (modern) or PS/2 KVM (legacy).
• Legacy Monitor: Only CRT-era or early LCD monitors (pre-2005) sometimes had PS/2 pass-through for integrated USB hubs—rare and unnecessary today.

Connect your keyboard/mouse to the computer. The monitor only receives video.