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AT&T 3740-A1-201 External 28.8 Modem No AC Adapter
- External modem form factor
- Data transmission speed of 28.8 kbps
- Requires an external AC adapter (not included)
- Utilizes standard dial-up telephone lines
- Designed for reliable data transfer
- Compatible with various operating systems and communication software
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Key specifications
See full specs ↓- Modem Type
- External
- Data Rate
- 28.8 kbps
- Power Supply
- External AC Adapter (Not Included)
- Interface
- RJ-11 (Phone Line), DB-25 or DB-9 (Computer)
Product details
The AT&T 3740-A1-201 is an external 28.8 kbps modem designed for reliable data communication. This unit is sold without an AC adapter, requiring the user to supply a compatible power source. It facilitates high-speed dial-up connections for various applications.
Technical Information
| Modem Type | External |
| Data Rate | 28.8 kbps |
Additional Specifications
| Power Supply | External AC Adapter (Not Included) |
| Interface | RJ-11 (Phone Line), DB-25 or DB-9 (Computer) |
Description
The AT&T 3740-A1-201 represents a generation of external modems that offered significant speed improvements over their predecessors. Operating at 28.8 kilobits per second, it was suitable for tasks such as file transfers, remote access, and early forms of internet browsing over analog phone lines. Its external design allowed for easy connection to a variety of computers via standard serial ports (typically RS-232). The modem would have featured status indicator LEDs for monitoring connection and data activity. The absence of an AC adapter in this specific listing means users must ensure they have a compatible power supply to operate the device. This model is a testament to the evolution of telecommunications hardware, bridging the gap between older, slower modems and the broadband technologies that would eventually supersede them. It requires configuration through AT commands or accompanying software to establish and manage connections.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
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