Internal Reference:
AC-SI4089A
Sunix mio4089AM - 2 port serial ( 16c550 ) + 2 port parallel (SPP/BPP/ECP/EPP) ( 2 slots required ) , 32/64bit 3.5/5V pci card , 32+16byte hardware + 128k software FiFo, ready for 64 bit system, sunix matrix UL7522EQ chipset , 115.2Kbps+2.7Mbps , 15KV ESD protection + 15KV IEC1000-4-2 Air Gap Discharge + 8KV IEC1000-4-2 Contact Discharge
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