Compare Quectel Wireless EC25-E mPCie Vs Quectel Wireless EC21-KL
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| Model | EC25-E mPCie | EC21-KL |
| Price | $54.90 | $38.80 |
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| Manufacturer | Quectel Wireless | Quectel Wireless |
| Form Factor | Mini PCI Express | LCC Castellation |
| Dimensions | 51 x 30 x 4.5 mm | 39 x 32 x 24 mm |
| Surface Area | 1530 sq. mm | 1248 sq. mm |
| Volume | 6885 cubic mm | 29952 cubic mm |
| Technologies | UMTS, HSDPA, HSPA+, LTE | LTE |
| Max. Upload Speed | 50 Mbps | 5 Mbps |
| Max. Download Speed | 100 Mbps | 10 Mbps |
| GSM Bands | 1800, 800 MHz | N/A |
| WCDMA Bands | B1 (2100), B8 (900 GSM) | N/A |
| LTE Bands | B1 (2100), B3 (1800+), B5 (850), B7 (2600), B8 (900 GSM), B20 (800 DD) | B1 (2100), B3 (1800+), B5 (850), B7 (2600), B8 (900 GSM) |
| EVDO Bands | N/A | N/A |
| 1xRTT Bands | N/A | N/A |
| Interfaces | USB | ADC, I2C, SIM, SPI, UART, USB |
| GPS Support | Yes | No |
| GNSS Support | Yes | No |
| Voice Support | No | Yes, PCM, Analog |
| Automotive Support | No | No |
| Temperature | -40 C to 85 C | -40 C to 85 C |
| Carrier Approvals | Deutsche Telekom, KT, Telefonica | KT, SK Telecom (Korea) |
| Certifications | CE, FAC, GCF, ICASA, RCM | KCC |