70€ au format d'un RPI

avec un Soc x86 atom quad core

plutôt pas mal

SoC – Intel Processor N100 quad-core processor up to 3.4 GHz (Turbo) with 6MB cache, 24EU Intel HD graphics @ 750 MHz; TDP: 6W
MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller with 264KB SRAM for I/O control
System Memory – 4GB or 8GB LPDDR5  (16GB optional, but not offered for sale yet)
Storage
M.2 M-Key socket for M.2 2230 NVMe (PCIe Gen 3.0 x4) SSD tested up to 3,400 MB/s (Read) and 3,100 MB/s (Write).
SPI flash for the BIOS/UEFI
eMMC flash footprint
Video Output – 2x micro HDMI 2.0 ports up to 4Kp60
Audio – 3.5mm headphone jack with microphone input
Networking
2.5GbE RJ45 port with PoE support through optional PoE HAT
WiFi 5 & BT 5 or WiFi 6 & BT 5.2
USB
3x USB 3.2 host ports (10 Gbps)
1x USB 2.0 host port (480 Mbps)
Expansion – 40-pin GPIO header with
Up to 2x SPI
Up to 2x UART
Up to 2x I2C
Up to 16x PWM
Up to 8x PIO(Programmable IO)
1 x 5V DC power in
2 x 3.3V power pin
Mostly compatible with the 40-pin Raspberry Pi GPIO header
Misc
Power Button
BOOTSEL Button for RP2040
Fan Header
RTC Header
BIOS features – Auto power on, Wake-on-LAN,  RTC-timed wakeup, PXE boot
Power Supply
12V/2A (min) via USB Type-C port with PD support. 25W+ recommended when all USB 3.0 are used
12V via power input header
Dimensions – 85 x 56x 20mm
Temperature Range – 0°C to 60°C

une nouvelle carte mère fanless qui succède à la mienne
(atom) Coeurs Gracemont

N100DC-ITX
Intel® Quad-Core Processor N100 (up to 3.4 GHz)
Supports 1 DDR4 DIMM
1 DC Jack (Compatible with the 19V power adapter)
1 PCIe 3.0 x4 (x2 mode), 1 M.2 Key E for WiFi
Graphics Output Options: D-Sub, HDMI
7.1 CH HD Audio (Realtek ALC897 Audio Codec)
2 SATA3, 1 M.2 (PCIe Gen3x2)
4 USB 3.2 Gen1 (2 Rear, 2 Front)
Realtek Gigabit LAN