Internal Modem Vs. External Modem Speeds

Modem speed is restricted by the limits of the telephone line.

Modems that utilize the telephone line can come in internal or external form. There are advantages and disadvantages to either of the modems, but one factor remains equal between them: speed. The speed of modems is the same whether internal or external.

Internal Modems

The advantage of an internal modem is the lack of extra wires required for installation. Internal modems get their power from the computer's power supply. Internal modems reach a top speed of 56 kilobits per second, just as their external modem counterparts.

External Modem

External modems require a power source and extra wires to connect to the computer. The advantage of external modems is that they feature lights on the front so you can monitor the connection status. Internal modems cannot be viewed from outside the computer except in the back of the unit. External modems can reach a top speed of 56 kilobits per second, just as their internal modem counterparts.

Speed Equality

The speed of internal and external modems is the same because it is determined by the telephone line they must use. Telephone lines can only reliably transmit and receive data at the rate of 56 kilobits per second. Modems could be made to go faster, but it would be pointless because of the physical barrier presented by the phone line.

References

• Rigacci: External/Internal Modems
• Bell Business: Modem Speed Explained