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TP-Link TD-8840T/TD-8840TB 4-port ADSL2/2+ Ethernet Router User Manual
The TP‑Link TD‑8840T/TD‑8840TB is a 2‑in‑1 DSL modem and 4‑port 10/100 Ethernet router that supports ADSL2/2+ standards for up to 24 Mbps downstream and up to 3.5 Mbps upstream (Annex M). It includes QoS, dual firewalls, and TR‑069 remote management, making it suitable for home networking, VoIP, and online gaming.
This guide covers the router’s interfaces, data rates, ADSL, ATM, PPP, switching and routing features, firewall and VPN pass‑through settings, device management options, LED indicators, environmental specifications, and physical dimensions. It also lists the accessories included and related TP‑Link products.
TP-Link TD-8840T specifications
| Downstream data rate | Up to 24 Mbps |
|---|---|
| Upstream data rate | Up to 3.5 Mbps (Annex M enabled) |
| RJ11 ports | 1 |
| Ethernet ports | 4 |
| Dimensions (L×W×H) | 7.9 × 5.5 × 1.1 in (200 × 140 × 28 mm) |
| Operating temperature | 0 °C ~ 40 °C |
| Storage temperature | -40 °C ~ 70 °C |
Source: TP-Link TD-8840T/TD-8840TB 4-port ADSL2/2+ Ethernet Router User Manual
All TP-Link TD-8840T documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How many Ethernet ports does the TD‑8840T have?
It provides four 10/100 Mbps Ethernet ports.
From: TP-Link TD-8840T/TD-8840TB 4-port ADSL2/2+ Ethernet Router User Manual
What is the maximum downstream speed supported by the router?
The router supports downstream speeds of up to 24 Mbps.
From: TP-Link TD-8840T/TD-8840TB 4-port ADSL2/2+ Ethernet Router User Manual