| SMS Support | Yes |
| Power Supply | USB |
| Voice Support | Call Support |
| Other Features | Support Receive Diversity, IPV6, CPC, PC Voice, Hilink Web UI / Dashboard, Smile Designing, Swiftest Surfing Speed, Weight Less than 30 g |
| External Interface | USB 2.0 |
| Setup Installation | Plug and Play |
| Color | White |
| Network Type | HSPA+, HSPA, UMTS |
| UMTS(3G) | 2100 MHz |
| GSM (EDGE/GPRS) | 850 MHz, 1800 MHz, 1900 MHz, 900 MHz |
| HSDPA | 21.6 Mbps |
| Depth | 7.1 mm |
| Width | 25.5 mm |
| Height | 67.5 mm |
| Weight | 30 g |
| Sales Package | Data Card |
| HSDPA | 21.6 Mbps |
| Voice Support | Call Support |
| Memory Capacity | 32 GB |
| SMS Support | Yes |
| Memory Card Slot Support | MicroSD Card |
| Model Name | E3531i-1/E3531i-2 |
| Operating System | Windows XP SP3, Windows Vista SP1/SP2, Windows 7, Windows 8(Does not Support Windows RT), qWindows 8.1 |
| Power Souce | USB |
| External Interface | USB 2.0 |
| Color | White |
| In The Box | Data Card, Product Information |
| Brand | Huawei |
| Model | E3531s-1 |
| Form Factor | USB Dongle |
| Part Number | E3531s |
| Memory Capacity | 32 GB |
| Memory Card Support Slot | microSD Card |
| Network Type | HSDPA, HSUPA, UMTS, GSM, HSPA+ |
| SIM or UIM Support | SIM |
| Operating System | Windows: XP, Vista, 7, 8, Mac OS X: 10.6, 10.7, 10.8 |