OSpecifications
Product name: Dell Wireless 5540 HSPA Mobile Broadband Mini-Card
System :
GSM 850, E-GSM 900, GSM 1800, GSM 1900UMTS 850
UMTS 900, UMTS 1900, UMTS 2100
GPS
Interface: PCI MiniCard, internal to notebook
Services supported:
GSM: GPRS/EDGE, SMS, USSD
UMTS: Packet-Switched, HSDPA, HSUPA, Circuit-Switched, SMS, USSD
Speech services are not supported
GPS positioning
HSPA (HSDPA/HSUPA) Technical Data 
Maximun downlink speed: 7.2 Mbps
HSDPA Categories: Category 1 to 8
Maximum uplink speed: 2.0 Mbps
HSUPA Categories: Category 1, 3, 5
SIM Card: Unlocked any sim cards
Dimentions: 51 x 30 x 4.2 mm

Compatibility

Inspiron Mini 10 (1012)
Inspiron Mini 10v (1011)
Inspiron 11z (1110)
Inspiron 1370

Latitude 13

Studio Laptop 1458
Studio Laptop 1557
Studio Laptop 1745
Studio Laptop 1747

Studio XPS Laptop 1340
Studio XPS Laptop 1640
Studio XPS Laptop 1645
Studio XPS Laptop 1647

Latitude 2110
Latitude E4200
Latitude E4310
Latitude E5410
Latitude E6400
Latitude E6410
Latitude E6410 ATG
Latitude E6500
Latitude E6510

Dell Precision Mobile WorkStation M4500

Vostro Notebook V130