| Model Number | Description / Wireless Carrier |
| ST1501 | Single Carrier 3G Router |
| ST1501-110 | Sprint |
| ST1501-120 | T-Mobile |
| ST1501-130 | Verizon |
| ST1501-140 | AT&T |
| ST1502 | Dual Carrier 3G Router with Auto Failover |
| ST1502-212 | Sprint / T-Mobile |
| ST1502-213 | Sprint / Verizon |
| ST1502-214 | Sprint / AT&T |
| ST1502-221 | T-Mobile / Sprint |
| ST1502-223 | T-Mobile / Verizon |
| ST1502-224 | T-Mobile / AT&T |
| ST1502-231 | Verizon / Sprint |
| ST1502-232 | Verizon / T-Mobile |
| ST1502-234 | Verizon / AT&T |
| ST1502-242 | AT&T / T-Mobile |
| ST1502-243 | AT&T / Verizon |
| ST1502-241 | AT&T / Sprint |
| ST1503 | Dual Carrier 3G Router with Load Balance |
| ST1503-212 | Sprint / T-Mobile |
| ST1503-213 | Sprint / Verizon |
| ST1503-214 | Sprint / AT&T |
| ST1503-224 | T-Mobile / AT&T |
| ST1503-234 | Verizon / AT&T |