Compare Quectel Wireless EC21-A mPCIe Vs Sierra Wireless AR7558


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Model EC21-A mPCIe AR7558
Price $115 $
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Manufacturer Quectel Wireless Sierra Wireless
Form Factor Mini PCI Express LGA
Dimensions 51 x 30 x 4.5 mm 32 x 37 x 3.6 mm
Surface Area 1530 sq. mm 1184 sq. mm
Volume 6885 cubic mm 4262.4 cubic mm
Technologies UMTS, HSDPA, HSPA+, LTE 1xRTT, EVDO Rev A, HSDPA, HSPA+, LTE
Max. Upload Speed 5 Mbps 50 Mbps
Max. Download Speed 10 Mbps 100 Mbps
GSM Bands N/A N/A
WCDMA Bands B2 (1900 PCS), B4 (AWS-1700), B5 (850) B2 (1900 PCS), B5 (850)
LTE Bands B2 (1900 PCS), B4 (AWS-1), B12 (700 a) B2 (1900 PCS), B4 (AWS-1), B5 (850), B7 (2600)
EVDO Bands N/A 800/1900 MHz
1xRTT Bands N/A 800/1900 MHz
Interfaces USB ADC, GPIO, I2C, SIM, SPI, UART, USB
GPS Support Yes Yes
GNSS Support Yes No
Voice Support No PCM, Analog
Automotive Support No Yes
Temperature -40 C to 85 C -40 C to 85 C
Carrier Approvals AT&T, Rogers, T-Mobile (USA), Telus Sprint
Certifications FCC, IC, PTCRB Automotive e-mark, FCC, GCF, IC, PTCRB