Equivalent/Alternative for Dell FX100 Zero Client

Hello All,

One of our clients using 800xA DCS System with FX100 Remote access device (Basically Works like a KVM which connects remote CPUs called as zero Client). But one of the FX100 is not working at the moment. From Dell what we understood they stopped support or sales of FX100 devices.

Anyone suggest me is there any alternative or Equivalent for this device?