Safe Checkout
Secure Payments
Fast Delivery
Order Today
Free Shipping
Across the US
Easy Returns
Hassle-Free
HP 451861-004 Broadcom 3945ABG Mini PCI-Express 802.11a/b/g
- Product Type: Wireless Network Adapter
- Form Factor: Mini PCI-Express
- Chipset Manufacturer: Broadcom
- Wireless Standards: 802.11a, 802.11b, 802.11g
- Frequency Bands: 2.4 GHz (802.11b/g), 5 GHz (802.11a)
- Interface: Mini PCI-Express
- Antenna Connectors: Typically 2 (for diversity)
- Target Device: Laptops, Small Form Factor PCs
Click on Inquire to get latest price
Free U.S. Ground Shipping
Typically 1-2 handling + 3-7 transit days
Purchase orders accepted
For government, enterprise, data center, and small business customers.
Bulk Purchase Inquiry
Volume pricing and availability
Product Overview
The HP 451861-004 is a Broadcom Mini PCI-Express wireless network adapter. It supports the 802.11a/b/g standards, providing wireless connectivity for laptops and other devices equipped with a Mini PCI-Express slot. This adapter offers a reliable solution for adding or upgrading wireless capabilities.
Technical Information
| Product Type | Wireless Network Adapter |
| Form Factor | Mini PCI-Express |
| Chipset | Broadcom |
Additional Specifications
| Wireless Standards | 802.11a/b/g |
| Interface | Mini PCI-Express |
| Manufacturer | HP / Broadcom |
Product Description
The HP 451861-004 is a wireless network interface card (NIC) based on Broadcom technology, designed to be installed in devices featuring a Mini PCI-Express slot. This adapter provides essential wireless networking capabilities, supporting the legacy 802.11a, 802.11b, and 802.11g standards. This allows it to connect to a wide range of wireless networks operating on both the 2.4 GHz (for 802.11b/g) and 5 GHz (for 802.11a) frequency bands. This Mini PCI-Express card is commonly found in laptops and small form-factor PCs that were manufactured during the era when this interface was prevalent. It serves as a replacement part for damaged or malfunctioning wireless cards or as an upgrade option for systems that may have shipped without wireless capabilities. The adapter typically utilizes antenna diversity, employing two antenna connectors to improve signal reception and overall wireless performance by selecting the antenna with the strongest signal. While the 802.11a/b/g standards represent older Wi-Fi technology compared to modern Wi-Fi 5 (802.11ac) or Wi-Fi 6 (802.11ax), they remain functional for basic internet browsing, email, and less demanding applications. The Broadcom chipset is known for its reliability and compatibility within the systems it was designed for. Installation requires opening the host device and physically inserting the card into the designated Mini PCI-Express slot.
