| Manufacturer | Part Number | Description |
|---|---|---|
| KSZ8721BL | Single Power Supply 10/100Base-TX/FX MII Physical Layer Transceiver | |
| KSZ8721BT | 10/100BasTX/FX MII Physical Layer Transceiver | |
| KSZ8721B | 10/100BasTX/FX MII Physical Layer Transceiver | |
Microchip Technology |
KSZ8721BL | Single Power Supply 10/100 Base-TX/FX MII Physical Layer Transceiver |