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The delivery timeliness of Amazon logistics depends on Amazon. The basic logistics time for self-shipping is 7-14 days, and express logistics is 3-7 days.
Due to the passive heat dissipation design adopted, heat generation from the casing is a normal phenomenon and will not affect actual use.
FriendlyWrt comes pre-installed, if you want to use another system, you can reinstall it according to the wiki instructions
SoC:Rockchip RK3588SRAM:64-bit 8GB LPDDR4X at 2133MHzFlash:32GB eMMC, at HS400 modeEthernet:one Native Gigabit Ethernet, and two PCIe 2.5G EthernetUSB:one USB 3.0 Type-A and one USB 2.0 Type-AHDMI:compatible with HDMI2.1, HDMI2.0, and HDMI1.4 operation; support up to 7680x4320@60Hz; Support RGB/YUV(up to 10bit) formatmicroSD:support up to SDR104 modeGPIO:12-pin 0.5mm FPC connector; with up to 1x SPI, up to 3x UARTs, up to 1x I2Cs, up to 2x SPDIF, up to 8x GPIOsDebug:one Debug UART, 3 Pin 2.54mm header, 3.3V level, 1500000bpsLEDs:4 x GPIO Controlled LED (SYS, WAN, LAN1, LAN2)others:2 Pin 1.27/1.25mm RTC battery input connector for low power RTC IC HYM8563TS; one IR receiver and the carrier frequency is 38Khz; MASK button for eMMC update; one user button; one 5V Fan connectorPower supply:USB-C, support PD, 5V/9V/12V/20V inputPCB:8 Layer, 62x90x1.6mm OS Support:FriendlyWrt 21.02; FriendlyWrt 22.03; Android 12 Tablet; Android 12 TV; FriendlyCore Lite 20.04; Debian 10 Desktop; Debian 11 Desktop; Ubuntu 22.04 DesktopKernel version:Linux-5.10-LTS; U-boot-2017.09DimensionPCB 8 Layer ; Weight 55.1gwithout Case) / 262gwith Case) ; 62x90x1.6mm (without Case) / 68x94.5x30mm (with Case) Nanopi R6S