8 ports GPRS GSM modem Pool, wireless modem USB/RS232 interface support bulk SMS

Brand: ETROSS or OEM brand 
Model No.: ETROSS-M800
Product name: RS-232/USB GSM GPRS Modem
Frequency: GSM 900/1800MHz Dual-band
                  GSM 850/900/1800/1900 Quad-band

Features:
1.8 port
2.Always on-line
3.Aluminum casing
4.Active SIM slot
5.Industrial design
6.Wavecom module made
7.Low power consumption
8.Provide English software
9.Wireless access to internet
10.Support at command setting
11.With SMS application toolkit
12.Comply with ETSI GSM Phase 2+
13.Antenna with high sensitivity
14.Dual-band/Quad-band(optional)
15.RS-232/USB interface(optional)
16.8 SIM Card supported (Big/Small)
17.Can send and receive English SMS in bulk
18.Wavecom Q-2403A/Wavecom Q-24plus module made
19.1 year factory warranty and permanent technology aid
20.The rate of sending SMS for every SIM card is 600~800 pieces/hour

Operation circumstance:
Operation temperature: -10c~60C
Storage temperature:-20C~70C
Operation humidity:45%-95% 
Atmosphere pressure:86-106Kpa
Environment noise: <60DB

Packaging(Standard carton): 
Color:Black
Product Weight:3kg
Product Size:L25*W15*H12(cm)
Accessories:

Power supply,RS232/USB cable,8 pcs of antennas and CD(English software&USB/RS232 driver)

Device with short antenna:

Device with 3M antenna: