| Image |
 |
 |
| Model |
SL8081 |
EM820W |
| Price |
$ |
$39 |
| Buy |
|
|
| Manufacturer |
Sierra Wireless |
Huawei |
| Form Factor |
LGA |
Mini PCI Express |
| Dimensions |
25 x 30 x 2.35 mm |
51 x 30 x 4.4 mm |
| Surface Area |
750 sq. mm |
1530 sq. mm |
| Volume |
1762.5 cubic mm |
6732 cubic mm |
| Technologies |
GSM, GPRS, EDGE, HSDPA |
GSM, GPRS, UMTS, EDGE, HSDPA, HSPA+ |
| Max. Upload Speed |
384 Kbps |
5.76 Mbps |
| Max. Download Speed |
3.6 Mbps |
21 Mbps |
| GSM Bands |
850, 900, 1800, 1900 MHz |
850, 900, 1800, 1900 MHz |
| WCDMA Bands |
B2 (1900 PCS), B5 (850) |
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, I2C, SDIO, SIM, SPI, UART, USB |
UART, USB |
| GPS Support |
Yes |
Yes |
| GNSS Support |
No |
Yes |
| Voice Support |
PCM |
No |
| Automotive Support |
No |
No |
| Temperature |
-40 C to 85 C |
-20 C to 70 C |
| Carrier Approvals |
AT&T |
Not Available |
| Certifications |
FCC, GCF, IC, PTCRB |
CCC, CE, FCC, GCF, IC, PTCRB, ROHS |