Supported operating system:

Windows Vista 32-bit
Windows Vista 64-bit
Windows 7 32-bit
Windows 7 64-bit

Release note:
Realtek ALC861/ALC880/ALC882/ALC883/ALC885/ALC887/ALC888/ALC889/ALC890/ALC260/ALC262/ALC268/ALC272/ALC273/ALC662/ALC663/ALC665 HD Audio version 2.43 driver for Vista/Vista-64/Win7/Win7-64 released on 26th Feb 2010.

What's new:

1. Vista/Windows 7 WHQL Supporting: ALC882, ALC883, ALC885, ALC888, ALC889, ALC892, ALC861VD, ALC660, ALC662, ALC663, ALC665, ALC260, ALC262,ALC267, ALC268, ALC269, ALC270, ALC272, ALC273, ALC887,ALC670, ALC275, ALC680.
2. Windows 2000/XP WHQL Supporting: ALC880, ALC882, ALC883, ALC885, ALC888, ALC889, ALC892, ALC861VC, ALC861VD, ALC660, ALC662, ALC663, ALC665, ALC260, ALC262, ALC267,ALC268, ALC269, ALC270, ALC272, ALC273, ALC887,ALC670, ALC275, ALC680.
3. HDMI Device WHQL Support: ATI HDMI Devices.
4. OS Supporting: Microsoft WindowsXP, Widnows2000, Windows Server 2003, Vista, Windows Server 2008, Windows7 - x86/x64.
5. Pack with Microsoft High Definition Audio UAAV1.0a(5013).

Supported Devices:
Realtek High Definition Audio