OEM Dell Black Premium 6-Button USB Laser Scroll Mouse V7623 J660D - Walmart.com
Amazon.com: Genuine Dell K251D 6-Button Grey Gray Silver Black USB Scroll Wheel Optical Laser Mouse, Works Perfectly With Windows 95, 98, NT 4.0, 2000, XP, Vista, and Windows 7, and Will Work
New Dell OEM Premium 6-Button USB Laser Scroll Mouse 1KHD8