| Image |
 |
 |
| Model |
EC21-A |
EM7355 |
| Price |
$50 |
$128.20 |
| Buy |
|
|
| Manufacturer |
Quectel Wireless |
Sierra Wireless |
| Form Factor |
LCC Castellation |
M.2 (NGFF) |
| Dimensions |
39 x 32 x 24 mm |
42 x 30 x 2.3 mm |
| Surface Area |
1248 sq. mm |
1260 sq. mm |
| Volume |
29952 cubic mm |
2898 cubic mm |
| Technologies |
UMTS, HSDPA, HSPA+, LTE |
GSM, GPRS, EDGE, HSDPA, HSPA+, LTE |
| Max. Upload Speed |
5 Mbps |
50 Mbps |
| Max. Download Speed |
10 Mbps |
100 Mbps |
| GSM Bands |
N/A |
850, 900, 1800, 1900 MHz |
| WCDMA Bands |
B2 (1900 PCS), B4 (AWS-1700), B5 (850) |
B1 (2100), B2 (1900 PCS), B4 (AWS-1700), B8 (900 GSM), B26 (850+) |
| LTE Bands |
B2 (1900 PCS), B4 (AWS-1), B12 (700 a) |
B2 (1900 PCS), B5 (850), B13 (700 c), B17 (700 b), B25 (1900+), B40 (TD 2300) |
| EVDO Bands |
N/A |
N/A |
| 1xRTT Bands |
N/A |
N/A |
| Interfaces |
ADC, GPIO, I2C, SPI, UART, USB |
ADC, GPIO, SDIO, SIM, SPI, UART, USB |
| GPS Support |
Yes |
Yes |
| GNSS Support |
Yes |
Yes |
| Voice Support |
Yes, PCM |
No |
| Automotive Support |
No |
No |
| Temperature |
-40 C to 85 C |
-25 C to 60 C |
| Carrier Approvals |
AT&T, Rogers, T-Mobile (USA), Telus |
AT&T, Bell, Rogers, Sprint, T-Mobile (USA), Verizon Wireless |
| Certifications |
FCC, IC, PTCRB |
CE, FCC, GCF, IC, NCC (Taiwan) |