3Com EtherLink III 3C509B-TPO 10Mbps ISA Network Interface Card

Condition Used (Good condition. Genuine OEM 3Com EtherLink III 10Mbps 16-bit ISA ethernet network interface card (NIC), Model 3C509B-TPO, Assembly Part Number 03-0020-004 REV A (PCB FAB 02-0020-004 REV B). Serial Number QCD1487357. Powered by 3Com Parallel Tasking custom controller ASIC (40-0130-003) and Valor FL1173 magnetics filter. Features a 16-bit ISA bus edge interface and a single RJ45 10Base-T twisted-pair ethernet port. Attached with a full-height metal PCI/ISA mounting bracket. Green circuit board, gold connector fingers, and bracket are clean and intact with minor cosmetic surface wear from prior deployment. Manufactured in USA. Sold AS-IS.)

ITEM SPECIFICS

• Brand / Manufacturer: 3Com Corporation

• Model Number: 3C509B-TPO (3C509B / 3C509B TPO)

• Assembly Part Number: 03-0020-004 REV A

• PCB Part Number: 02-0020-004 REV B

• Serial Number (S/N): QCD1487357

• FCC ID: DF63C509B-TPO

• Controller / Technology: 3Com Parallel Tasking ASIC (40-0130-003)

• Interface / Bus Type: 16-Bit ISA Expansion Slot

• Data Transfer Rate: 10 Mbps (10Base-T Ethernet)

• External Port: 1x RJ45 8-Pin Modular Ethernet Port

• Form Factor: Full-Height 16-Bit ISA Card

• Color: Green PCB w/ Silver Bracket

• Country of Manufacture: Made in USA

• Specific Device Compatibility:

  • Retro Computing & Legacy Industrial PCs: Extremely popular network adapter for vintage 386, 486, and Pentium retro PCs running MS-DOS, Windows 3.1, Windows 95, Windows 98, OS/2, or Linux, as well as legacy industrial ISA-slot systems requiring a reliable 10Base-T network card.