Thelio Mira (thelio-mira-b4-n3)

• External Overview
• Internal Overview
• Parts & Repairs

The System76 Thelio Mira is a desktop with the following specifications:

• Processor options
  • Supports Intel 14th generation (Raptor Lake) CPUs
    • Core i9-14900KS
    • Core i9-14900K
    • Core i7-14700K
    • Core i5-14400
• Motherboard
  • Gigabyte Z790 Aorus Elite AX running System76 Firmware (non-open)
  • Intel Z790 Express Chipset
• Daughterboard
  • Thelio Io board running open-source firmware
    • Version 2.3
• Graphics options
  • Configured with up to one dedicated GPU
    • Factory configurations limited to one GPU
    • Primary GPU slot:
      • PCIe 5.0 x16
      • Up to 4-slot height
    • Secondary GPU slot:
      • PCIe 4.0 x4
        • Fits physical x16 cards, runs at x4 bandwidth
      • Up to 2-slot height (if third slot is empty)
  • GPU size:
    • Internal clearance: 358.00mm
    • Recommended maximum length: 348.00mm
  • Tested with the following GPUs:
    • NVIDIA GeForce RTX 4090
      • 3x DisplayPort 1.4a
      • 1x HDMI 2.1a
    • NVIDIA GeForce RTX 4080 Super
      • 3x DisplayPort 1.4a
      • 1x HDMI 2.1
    • NVIDIA GeForce RTX 4070 Ti Super
      • 3x DisplayPort 1.4a
      • 1x HDMI 2.1
    • NVIDIA GeForce RTX 4060 Ti
      • 3x DisplayPort 1.4a
      • 1x HDMI 2.1
    • AMD Radeon RX 7900 GRE
      • 2x DisplayPort 2.1
      • 2x HDMI 2.1a
      • 1x USB Type-C (DisplayPort 2.1 signal)
    • AMD Radeon RX 7600
      • 2x DisplayPort 2.1
      • 2x HDMI 2.1a
    • Integrated Graphics (dependent on CPU selection)
      • Core i7-14700K, Core i9-14900K, Core i9-14900KS:
        • Intel UHD Graphics 770
          • 1x HDMI 2.1
      • Core i5-14400:
        • Intel UHD Graphics 730
          • 1x HDMI 2.1
• Expansion
  • 1x PCIe 5.0 x16 (primary GPU slot)
  • 1x PCIe 4.0 x4 (secondary GPU slot)
    • Fits physical x16 cards, runs at x4 bandwidth
  • 1x PCIe 3.0 x4
    • Fits physical x16 cards, runs at x4 bandwidth
• Memory
  • Up to 128GB (4x32GB) dual-channel DDR5 DIMMs @ 4000 MHz
    • 64GB (2x32GB) and less runs @ 4800 MHz
  • Tested with the following RAM modules (may ship with other tested modules):
    • Crucial CT32G48C40U5 (32GB/stick)
• Networking
  • 1x 2.5-Gigabit Ethernet (Realtek RTL8125)
  • Wi-Fi 6E + Bluetooth 5.2 (Intel AX211)
• Power
  • C13 power cord
  • 850W PSU
  • 80+ Gold Efficiency
  • Tested with the following PSU models (may ship with other tested models):
    • Be Quiet! Pure Power 12 M
    • XPG Core Reactor II
• Sound
  • Back:
    • 3.5mm mic in
    • 3.5mm line out
    • S/PDIF out
  • Top:
    • 3.5mm mic in
    • 3.5mm line out
  • Up to 7.1-channel audio output
  • Realtek ALC897 audio chipset
  • HDMI, DisplayPort, USB-C DisplayPort audio (depending on GPU)
• Storage
  • 4x M.2 (PCIe NVMe Gen 4) SSDs
  • 2x 2.5" SATA III
• USB
  • Back ports:
    • 1x USB 3.2 Gen 2x2 (Type-C)
      • Does not support Thunderbolt or DisplayPort over USB-C.
    • 2x USB 3.2 Gen 2 (Type-A)
    • 3x USB 3.2 Gen 1 (Type-A)
    • 4x USB 2.0 Type-A (Type-A)
  • Top ports:
    • 1x USB 3.2 Gen 1 (Type-C)
    • 1x USB 3.2 Gen 1 (Type-A)
• Dimensions
  • 43.8cm × 24.7cm × 37.2cm