According to this, it uses the RTL8811AU chipset.
You might need to build the driver yourself. It’s possible that the rtl8812au driver will also work. I can get GitHub - zebulon2/rtl8812au: RTL8812AU/21AU Driver for Linux to compile, though I have no idea if it’ll work with your device.
osmc@osmc:~/rtl8812au$ make ARCH=arm
make ARCH=arm CROSS_COMPILE= -C /lib/modules/4.19.122-1-osmc/build M=/home/osmc/rtl8812au modules
make[1]: Entering directory '/usr/src/rbp2-headers-4.19.122-1-osmc'
<snip>
Building modules, stage 2.
MODPOST 1 modules
CC /home/osmc/rtl8812au/8812au.mod.o
LD [M] /home/osmc/rtl8812au/8812au.ko
make[1]: Leaving directory '/usr/src/rbp2-headers-4.19.122-1-osmc'
osmc@osmc:~/rtl8812au$ modinfo 8812au.ko
filename: /home/osmc/rtl8812au/8812au.ko
version: v5.1.5_19247.20160830
author: Realtek Semiconductor Corp.
description: Realtek Wireless Lan Driver
license: GPL
srcversion: 83B42C8630A364F0F3AD62C
alias: usb:v0411p029Bd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDApA811d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v056Ep4007d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0846p9052d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2019pAB32d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0411p0242d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v056Ep400Fd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v056Ep400Ed*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0E66p0023d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2001p3318d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2001p3314d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v04BBp0953d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v7392pA813d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v7392pA812d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v7392pA811d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDAp0823d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v0BDAp0820d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v0BDApA811d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDAp8822d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDAp0821d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDAp0811d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v148Fp9097d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2604p0012d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v050Dp1109d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0411p025Dd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v20F4p805Bd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2357p0122d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2357p010Fd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2357p010Ed*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2357p010Dd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2357p0103d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2357p0101d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v13B1p003Fd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v20F4p805Bd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2001p3316d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2001p3315d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v07B8p8812d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2019pAB30d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1740p0100d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v13B1p003Fd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1058p0632d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2001p3313d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0586p3426d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0E66p0022d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0B05p17D2d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0409p0408d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0789p016Ed*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v04BBp0952d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0DF6p0074d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v7392pA822d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v2001p330Ed*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v050Dp1109d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v050Dp1106d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDAp881Cd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDAp881Bd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDAp881Ad*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDAp8812d*dc*dsc*dp*ic*isc*ip*in*
depends: cfg80211
name: 8812au
vermagic: 4.19.122-1-osmc SMP preempt mod_unload modversions ARMv7 p2v8
parm: rtw_ips_mode:The default IPS mode (int)
parm: rtw_usb_rxagg_mode:int
parm: rtw_drv_log_level:set log level when insert driver module, default log level is _DRV_INFO_ = 4 (uint)
parm: rtw_tx_bw_mode:The max tx bw for 2.4G and 5G. format is the same as rtw_bw_mode (uint)
parm: rtw_country_code:The default country code (in alpha2) (charp)
parm: rtw_channel_plan:The default chplan ID when rtw_alpha2 is not specified or valid (int)
parm: rtw_excl_chs:exclusive channel array (array of uint)
parm: rtw_force_igi_lb:force IGI low-bound, 0:no specified (int)
parm: rtw_qos_opt_enable:int
parm: ifname:The default name to allocate for first interface (charp)
parm: if2name:The default name to allocate for second interface (charp)
parm: rtw_pwrtrim_enable:int
parm: rtw_initmac:charp
parm: rtw_special_rf_path:int
parm: rtw_chip_version:int
parm: rtw_rfintfs:int
parm: rtw_lbkmode:int
parm: rtw_network_mode:int
parm: rtw_channel:int
parm: rtw_mp_mode:int
parm: rtw_wmm_enable:int
parm: rtw_vrtl_carrier_sense:int
parm: rtw_vcs_type:int
parm: rtw_busy_thresh:int
parm: rtw_ht_enable:int
parm: rtw_bw_mode:int
parm: rtw_ampdu_enable:int
parm: rtw_rx_stbc:int
parm: rtw_ampdu_amsdu:int
parm: rtw_vht_enable:int
parm: rtw_beamform_cap:int
parm: rtw_lowrate_two_xmit:int
parm: rtw_rf_config:int
parm: rtw_power_mgnt:int
parm: rtw_smart_ps:int
parm: rtw_low_power:int
parm: rtw_wifi_spec:int
parm: rtw_full_ch_in_p2p_handshake:int
parm: rtw_antdiv_cfg:int
parm: rtw_antdiv_type:int
parm: rtw_drv_ant_band_switch:int
parm: rtw_switch_usb_mode:int
parm: rtw_enusbss:int
parm: rtw_hwpdn_mode:int
parm: rtw_hwpwrp_detect:int
parm: rtw_hw_wps_pbc:int
parm: rtw_check_hw_status:int
parm: rtw_max_roaming_times:The max roaming times to try (uint)
parm: rtw_mc2u_disable:int
parm: rtw_80211d:Enable 802.11d mechanism (int)
parm: rtw_notch_filter:0:Disable, 1:Enable, 2:Enable only for P2P (uint)
parm: rtw_led_enable:Enable status LED (int)
parm: rtw_hiq_filter:0:allow all, 1:allow special, 2:deny all (uint)
parm: rtw_adaptivity_en:0:disable, 1:enable (uint)
parm: rtw_adaptivity_mode:0:normal, 1:carrier sense (uint)
parm: rtw_adaptivity_dml:0:disable, 1:enable (uint)
parm: rtw_adaptivity_dc_backoff:DC backoff for Adaptivity (uint)
parm: rtw_adaptivity_th_l2h_ini:TH_L2H_ini for Adaptivity (int)
parm: rtw_adaptivity_th_edcca_hl_diff:TH_EDCCA_HL_diff for Adaptivity (int)
parm: rtw_amplifier_type_2g:BIT3:2G ext-PA, BIT4:2G ext-LNA (uint)
parm: rtw_amplifier_type_5g:BIT6:5G ext-PA, BIT7:5G ext-LNA (uint)
parm: rtw_RFE_type:default init value:64 (uint)
parm: rtw_powertracking_type:default init value:64 (uint)
parm: rtw_GLNA_type:default init value:0 (uint)
parm: rtw_TxBBSwing_2G:default init value:0xFF (uint)
parm: rtw_TxBBSwing_5G:default init value:0xFF (uint)
parm: rtw_OffEfuseMask:default open Efuse Mask value:0 (uint)
parm: rtw_FileMaskEfuse:default drv Mask Efuse value:0 (uint)
parm: rtw_rxgain_offset_2g:default RF Gain 2G Offset value:0 (uint)
parm: rtw_rxgain_offset_5gl:default RF Gain 5GL Offset value:0 (uint)
parm: rtw_rxgain_offset_5gh:uint
parm: rtw_rxgain_offset_5gm:default RF Gain 5GM Offset value:0 (uint)
parm: rtw_pll_ref_clk_sel:force pll_ref_clk_sel, 0xF:use autoload value (uint)
parm: rtw_tx_pwr_lmt_enable:0:Disable, 1:Enable, 2: Depend on efuse (int)
parm: rtw_tx_pwr_by_rate:0:Disable, 1:Enable, 2: Depend on efuse (int)
parm: rtw_target_tx_pwr_2g_a:2.4G target tx power (unit:dBm) of RF path A for each rate section, should match the real calibrate power, -1: undefined (array of int)
parm: rtw_target_tx_pwr_2g_b:2.4G target tx power (unit:dBm) of RF path B for each rate section, should match the real calibrate power, -1: undefined (array of int)
parm: rtw_target_tx_pwr_2g_c:2.4G target tx power (unit:dBm) of RF path C for each rate section, should match the real calibrate power, -1: undefined (array of int)
parm: rtw_target_tx_pwr_2g_d:2.4G target tx power (unit:dBm) of RF path D for each rate section, should match the real calibrate power, -1: undefined (array of int)
parm: rtw_target_tx_pwr_5g_a:5G target tx power (unit:dBm) of RF path A for each rate section, should match the real calibrate power, -1: undefined (array of int)
parm: rtw_target_tx_pwr_5g_b:5G target tx power (unit:dBm) of RF path B for each rate section, should match the real calibrate power, -1: undefined (array of int)
parm: rtw_target_tx_pwr_5g_c:5G target tx power (unit:dBm) of RF path C for each rate section, should match the real calibrate power, -1: undefined (array of int)
parm: rtw_target_tx_pwr_5g_d:5G target tx power (unit:dBm) of RF path D for each rate section, should match the real calibrate power, -1: undefined (array of int)
parm: rtw_phy_file_path:The path of phy parameter (charp)
parm: rtw_load_phy_file:PHY File Bit Map (int)
parm: rtw_decrypt_phy_file:Enable Decrypt PHY File (int)
You’ll probably need to modify the headers, as detailed here.