Looking for a cable modem in working condition, with power supply. Thanks!

List of models:
    Arris SB8200
    Arris G18
    Arris G20
    Arris G34
    Arris G36
    Arris G54
    Arris SBG8300
    Arris S33
    Arris S34
    ASUS CMAX6000
    Hitron CODA-56
    Hitron D3.1 CODA
    Humax HGD310
    Motorola B12
    Motorola MB8600
    Motorola MB8611
    Motorola MG8702
    Motorola MG8725
    Netgear CAX30
    Netgear CAX80
    Netgear CM1000
    Netgear CM1100
    Netgear CM1200
    Netgear CM2000
    Netgear CM2500
    Netgear CM3000
    Netgear C7800
    Netgear Orbi CBR750
    Ubiquiti UCI

    Arris SBG7400AC2
    Linksys CG7500
    Motorola MG7700
    Netgear C6900
    Netgear C7000
    Netgear C7500
    Netgear CM600
    Netgear C7000V2

Cable modem (Washington Heights)