Click the panel on the right. you can download Alienware X51 R2 Drivers easily.

Dell Alienware X51 R2 BIOS Drivers

• Alienware X51 R2 System BIOS V.A12, A12 for BIOS
• Alienware X51 R2 System BIOS V.A12, A12 for Windows 10, 64-bit
• Alienware X51 R2 System BIOS V.A12, A12 for Windows 7, 64-bit
• Alienware X51 R2 System BIOS V.A12, A12 for Windows 8, 64-bit
• Alienware X51 R2 System BIOS V.A12, A12 for Windows 8.1, 64-bit

Dell Alienware X51 R2 Application Drivers

• Dell Update/Alienware Update Application V.4.2.1, A00 for Windows 10, 64-bit
• Dell Update/Alienware Update Application for Windows 10 V.4.2.1, A00 for Windows 10, 64-bit
• Dell/Alienware Digital Delivery Application V.4.0.90.0, A19 for Windows 10, 64-bit
• Dell Foundation Services - Application V.3.4.16100.0, A00 for Windows 10, 64-bit
• Alienware Command Center 4.0 for Desktops V.4.0.51.0, A02 for Windows 10, 64-bit
• Dell Update/Alienware Update Application V.4.2.1, A00 for Windows 7, 64-bit
• Dell Digital Delivery Application V.3.5.2015.0, A11 for Windows 7, 64-bit
• Dell Digital Delivery Application V.3.5.2006.0, A08 for Windows 7, 64-bit
• Dell Foundation Services - Application V.3.4.16100.0, A00 for Windows 7, 64-bit
• Alienware Command Center 4.0 for Desktops V.4.0.51.0, A02 for Windows 7, 64-bit
• Dell Digital Delivery Application V.3.1.1002.0, A10 for Windows 8, 64-bit
• Command Center 3.5 for Desktops V.3.5.10.0, A03-00 for Windows 8, 64-bit
• Dell Update/Alienware Update Application V.4.2.1, A00 for Windows 8.1, 64-bit
• Dell Digital Delivery Application V.3.5.2015.0, A11 for Windows 8.1, 64-bit
• Dell Digital Delivery Application V.3.5.2006.0, A08 for Windows 8.1, 64-bit
• Dell Foundation Services - Application V.3.4.16100.0, A00 for Windows 8.1, 64-bit
• Alienware Command Center 4.0 for Desktops V.4.0.51.0, A02 for Windows 8.1, 64-bit

Dell Alienware X51 R2 Audio Drivers

• Realtek Audio Driver V.6.0.1.8224, A00 for Windows 10, 64-bit
• Realtek Audio Driver V.6.0.1.6844, A01 for Windows 7, 64-bit
• Realtek Audio Driver V.6.0.1.6844, A01 for Windows 8, 64-bit
• Realtek Audio Driver V.6.0.1.7037, A00 for Windows 8.1, 64-bit

Dell Alienware X51 R2 Chipset Drivers

• Intel Management Engine Controller Driver V.11.0.0.1153, A00 for Windows 10, 64-bit
• Intel Chipset Driver V.10.1.1.8, A00 for Windows 10, 64-bit
• Intel Chipset Driver V.10.0.13, A00 for Windows 7, 64-bit
• Intel Management Engine Controller Driver V.10.0.0.1126, A00 for Windows 7, 64-bit
• Intel Integrated USB 3.0 Driver V.2.5.0.19, A03 for Windows 7, 64-bit
• Intel Chipset Driver V.10.0.13, A00 for Windows 8, 64-bit
• Intel Management Engine Controller Driver V.10.0.0.1126, A00 for Windows 8, 64-bit
• Intel Chipset Driver V.10.0.13, A00 for Windows 8.1, 64-bit
• Intel Management Engine Controller Driver V.10.0.0.1126, A00 for Windows 8.1, 64-bit

Dell Alienware X51 R2 Network, Ethernet & Wireless Drivers

• Dell Wireless 1550 Wi-Fi and Bluetooth Driver V.12.0.1.690, A00 for Windows 10, 64-bit
• Realtek Integrated Ethernet Controller Driver V.10.1.505.2015, A01 for Windows 10, 64-bit
• Dell Wireless 1550 Wi-Fi Driver V.7.35.267.0, A00 for Windows 10, 64-bit
• Dell Wireless 1506 WLAN Driver V.10.0.0.318, A01 for Windows 10, 64-bit
• Dell Wireless 1506 Wi-Fi Driver V.9.2.0, A01 for Windows 7, 64-bit
• Realtek Ethernet Controller Driver V.8.2.504.2012, A01 for Windows 7, 64-bit
• Dell Wireless 1550 Wi-Fi and Bluetooth Driver V.6.5.1, A00 for Windows 7, 64-bit
• Dell Wireless 1506 Wi-Fi Driver V.10.0.0, A01 for Windows 8, 64-bit
• Realtek Ethernet Controller Driver V.8.2.504.2012, A01 for Windows 8, 64-bit
• Dell Wireless 1550 WiFi + Bluetooth Driver V.12.0.0.6300, A00 for Windows 8, 64-bit
• Dell Wireless 1506 WLAN Driver V.10.0.0.260, A00 for Windows 8.1, 64-bit
• Dell Wireless 1550 Wi-Fi and Bluetooth Driver V.12.0, A00 for Windows 8.1, 64-bit
• Realtek Integrated Ethernet Controller RTL8111G Driver V.8.018, A00 for Windows 8.1, 64-bit

Dell Alienware X51 R2 Storage Drivers

• Seagate ST500DM009 and ST1000DM010 Hard Disk Drive Firmware Update V.1001, A00 for Windows 10, 64-bit
• Western Digital ML500M Hard Drive Firmware Update V.03.01A02, A00 for Windows 10, 64-bit
• Samsung PM851 Solid State Drive Firmware Update V.EXT08D0Q, A00 for Windows 10, 64-bit
• Dell Optical Drive Software Eject Driver V.1.0.0.6, A00 for Windows 10, 64-bit
• Intel Rapid Storage Technology Driver V.14.5.0.1081, A00 for Windows 10, 64-bit
• Intel Rapid Storage Technology Driver V.14.5.0.1081, A00 for Windows 10, 64-bit
• Seagate ST500DM009 and ST1000DM010 Hard Disk Drive Firmware Update V.1001, A00 for Windows 7, 64-bit
• Western Digital ML500M Hard Drive Firmware Update V.03.01A02, A00 for Windows 7, 64-bit
• Samsung PM851 Solid State Drive Firmware Update V.EXT08D0Q, A00 for Windows 7, 64-bit
• Intel Rapid Storage Technology Driver V.12.8.2.1000, A01 for Windows 7, 64-bit
• Intel Rapid Storage Technology Driver V.12.8.2.1000, A02 for Windows 7, 64-bit
• LiteOn IT LCS-256M6S Solid State Drive Firmware Update V.DC8110E, A04 for Windows 7, 64-bit
• LiteOnIT LMS-32L6M Solid State Drive Firmware Update V.DM5110E, A04 for Windows 7, 64-bit
• Intel Rapid Storage Technology driver V.12.0.0.1083, A00 for Windows 7, 64-bit
• ODD driver for W7/W8. V.1.0.0.6, A00 for Windows 7, 64-bit
• F6 driver for H87 platform. V.12.0.0.1083, A00 for Windows 7, 64-bit
• Seagate ST500DM009 and ST1000DM010 Hard Disk Drive Firmware Update V.1001, A00 for Windows 8, 64-bit
• Western Digital ML500M Hard Drive Firmware Update V.03.01A02, A00 for Windows 8, 64-bit
• Samsung PM851 Solid State Drive Firmware Update V.EXT08D0Q, A00 for Windows 8, 64-bit
• Intel Rapid Storage Technology Driver V.12.8.2.1000, A01 for Windows 8, 64-bit
• Intel Rapid Storage Technology Driver V.12.8.2.1000, A02 for Windows 8, 64-bit
• LiteOn IT LCS-256M6S Solid State Drive Firmware Update V.DC8110E, A04 for Windows 8, 64-bit
• LiteOnIT LMS-32L6M Solid State Drive Firmware Update V.DM5110E, A04 for Windows 8, 64-bit
• Intel Rapid Storage Technology driver V.12.0.0.1083, A00 for Windows 8, 64-bit
• ODD driver for W7/W8. V.1.0.0.6, A00 for Windows 8, 64-bit
• F6 driver for H87 platform. V.12.0.0.1083, A00 for Windows 8, 64-bit
• Seagate ST500DM009 and ST1000DM010 Hard Disk Drive Firmware Update V.1001, A00 for Windows 8.1, 64-bit
• Western Digital ML500M Hard Drive Firmware Update V.03.01A02, A00 for Windows 8.1, 64-bit
• Samsung PM851 Solid State Drive Firmware Update V.EXT08D0Q, A00 for Windows 8.1, 64-bit
• Intel Rapid Storage Technology Driver V.12.8.2.1000, A00 for Windows 8.1, 64-bit
• Dell Optical Drive Software Eject Driver V.1.0.0.6, A00 for Windows 8.1, 64-bit
• Intel Rapid Storage Technology Driver V.12.8.2.1000, A00 for Windows 8.1, 64-bit
• LiteOn IT LCS-256M6S Solid State Drive Firmware Update V.DC8110E, A04 for Windows 8.1, 64-bit
• LiteOnIT LMS-32L6M Solid State Drive Firmware Update V.DM5110E, A04 for Windows 8.1, 64-bit

Dell Alienware X51 R2 Security Drivers

• Dell Security Advisory Update - DSA-2020-059 V.1.0.0.0, A00 for Windows 10, 64-bit

Dell Alienware X51 R2 Video Drivers

• Intel HD Graphics Driver V.20.19.15.4549, A03 for Windows 10, 64-bit
• NVIDIA GeForce GT/GTX Series Graphics Driver V.10.18.13.5324, A00 for Windows 10, 64-bit
• AMD Radeon Graphics Driver V.15.200.1055, A00 for Windows 10, 64-bit
• NVIDIA GeForce GTX 6xx/7xx/9xx/Titanx Desktop Graphics Driver V.10.18.13.5354, A00 for Windows 10, 64-bit
• Intel HD Graphics Driver V.10.18.14.4414, A02 for Windows 7, 64-bit
• NVIDIA GeForce GTX Series Graphics Driver V.9.18.13.3266, A00 for Windows 7, 64-bit
• NVIDIA GeForce Graphics Driver V.9.18.13.3185, A00 for Windows 7, 64-bit
• AMD Radeon Desktop Graphics Driver V.13.152.0, A00 for Windows 7, 64-bit
• NVIDIA GeForce Graphics Driver V.9.18.13.1106, A00 for Windows 7, 64-bit
• Intel HD Graphics Driver V.9.18.10.3234, A03 for Windows 8, 64-bit
• AMD Radeon Desktop Graphics Driver V.13.152.0, A00 for Windows 8, 64-bit
• NVIDIA GeForce Desktop Graphics Driver V.2.3.0.0, A00 for Windows 8, 64-bit
• NVIDIA GeForce Graphics Driver V.9.18.13.1106, A00 for Windows 8, 64-bit
• NVIDIA GeForce Graphics Driver V.9.18.13.1106, A00 for Windows 8, 64-bit
• Intel HD Graphics Driver V.10.18.14.4414, A02 for Windows 8.1, 64-bit
• NVIDIA GeForce GTX Series Graphics Driver V.9.18.13.3266, A00 for Windows 8.1, 64-bit
• NVIDIA GeForce Graphics Driver V.9.18.13.3185, A00 for Windows 8.1, 64-bit
• AMD Radeon Desktop Graphics Driver V.13.152.0, A00 for Windows 8.1, 64-bit

Dell Alienware X51 R2 Backup and Recovery Drivers

• Dell Backup and Recovery (DBAR) Application V.1.9.2.8, A00 for Windows 7, 64-bit
• Dell Backup and Recovery (DBAR) Application V.1.9.2.8, A00 for Windows 8.1, 64-bit

Dell Alienware X51 R2 Removable Storage Drivers

• Intel USB driver for Andromeda R2 (Shark Bay). V.2.0.0.100, A00 for Windows 7, 64-bit