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Dell J4781 WiFi Mini PCI Express 802.11 b/g Wireless Card
- Mini PCI Express (Mini PCIe) form factor.
- Supports 802.11b and 802.11g wireless standards.
- Provides wireless network connectivity.
- Ideal for laptops or embedded systems with Mini PCIe slots.
- Operates in the 2.4 GHz frequency band.
- Plug-and-play installation (driver dependent).
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Key specifications
See full specs ↓- Product Type
- Wireless Network Card
- Interface
- Mini PCI Express (Mini PCIe)
- Wireless Standards
- 802.11b, 802.11g
- Frequency Band
- 2.4 GHz
- SKU
- J4781
Product details
The Dell J4781 is a WiFi Mini PCI Express wireless network card supporting the 802.11 b/g standards. It provides wireless connectivity for laptops or other devices equipped with a compatible Mini PCI Express slot.
Technical Information
| Product Type | Wireless Network Card |
| Interface | Mini PCI Express (Mini PCIe) |
| Wireless Standards | 802.11b, 802.11g |
Additional Specifications
| Frequency Band | 2.4 GHz |
| SKU | J4781 |
Description
The Dell J4781 is a wireless network interface card designed to provide Wi-Fi connectivity to devices featuring a Mini PCI Express (Mini PCIe) slot. This interface is commonly found in older generation laptops, small form factor PCs, and various embedded systems. The card adheres to the IEEE 802.11b and 802.11g standards, offering wireless networking capabilities at speeds up to 11 Mbps for 802.11b and up to 54 Mbps for 802.11g. Operating exclusively in the 2.4 GHz frequency band, this card allows users to connect to wireless networks for internet access or local area networking. Its Mini PCIe form factor ensures a compact physical footprint, making it suitable for integration into space-constrained devices. Installation typically involves physically inserting the card into the Mini PCIe slot and installing the appropriate drivers for the operating system. This specific Dell-branded card (SKU J4781) is a component that enables wireless communication, bridging the gap between a device and a wireless access point or network. While it supports older Wi-Fi standards, it remains functional for basic internet browsing, email, and other less bandwidth-intensive tasks on compatible hardware.
Condition: Refurbished
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Typically 1–2 days handling, 3–7 days in transit.
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