| Image |
 |
 |
| Model |
HL8548 |
EM820W |
| Price |
$52 |
$39 |
| Buy |
|
|
| Manufacturer |
Sierra Wireless |
Huawei |
| Form Factor |
LGA |
Mini PCI Express |
| Dimensions |
22 x 23 x 2.5 mm |
51 x 30 x 4.4 mm |
| Surface Area |
506 sq. mm |
1530 sq. mm |
| Volume |
1265 cubic mm |
6732 cubic mm |
| Technologies |
GSM, GPRS, UMTS, EDGE, HSDPA |
GSM, GPRS, UMTS, EDGE, HSDPA, HSPA+ |
| Max. Upload Speed |
5.76 Mbps |
5.76 Mbps |
| Max. Download Speed |
7.2 Mbps |
21 Mbps |
| GSM Bands |
850, 900, 1800, 1900 MHz |
850, 900, 1800, 1900 MHz |
| WCDMA Bands |
B1 (2100), B2 (1900 PCS), B5 (850), B6 (800), B8 (900 GSM), B19 (800 Japan) |
B1 (2100), B2 (1900 PCS), B8 (900 GSM), B26 (850+) |
| LTE Bands |
N/A |
N/A |
| EVDO Bands |
N/A |
N/A |
| 1xRTT Bands |
N/A |
N/A |
| Interfaces |
ADC, GPIO, SIM, UART, USB |
UART, USB |
| GPS Support |
Yes |
Yes |
| GNSS Support |
Yes |
Yes |
| Voice Support |
PCM, Analog |
No |
| Automotive Support |
No |
No |
| Temperature |
-40 C to 85 C |
-20 C to 70 C |
| Carrier Approvals |
AT&T, NTT DoCoMo, Rogers, Telstra, Vodafone |
Not Available |
| Certifications |
ANATEL, CE, FCC, GCF, IC, PTCRB |
CCC, CE, FCC, GCF, IC, PTCRB, ROHS |