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KSZ8721B - 2.5V 10/100BasTX/FX MII Physical Layer Transceiver
KSZ8721BT - 2.5V 10/100BasTX/FX MII Physical Layer Transceiver
KS8721BT - 2.5V 10/100BasTX/FX MII Physical Layer Transceiver
KS8721B - 2.5V 10/100BasTX/FX MII Physical Layer Transceiver