| Manufacturer | Adtran |
| Manufacturer Part # | 1189902L1 |
| Cost Central Item # | 10131698 |
| Product Description | ADTRAN MX3ETH4 - Expansion module - Ethernet, Fast Ethernet - 10Base-T, 100Base-TX - 4 ports |
| Device Type | Expansion module |
| Form Factor | Plug-in module |
| Ports Qty | 4 ports |
| Cabling Type | Ethernet 10Base-T, Ethernet 100Base-TX |
| Data Link Protocol | Ethernet, Fast Ethernet |
| Device Type | Expansion module - 4 ports |
| Form Factor | Plug-in module |
| Connectivity Technology | Wired |
| Cabling Type | Ethernet 10Base-T, Ethernet 100Base-TX |
| Data Link Protocol | Ethernet, Fast Ethernet |
| Interfaces | 4 x network - Ethernet 10Base-T/100Base-TX - RJ-45 |
| Compatible Slots | 1 x expansion slot |