actually no it's not an HP it's an alienware. And yeah I'm positive it's an express slot, you can look
here if yeh don't believe me
if you can find a cheaper, also good one, then by all means point it out to me. BTW that HP one is only like 30-40$ on ebay...
my system specs are as follows:
Aurora™ m9700
Processor: AMD Turion™ 64 Mobile ML37 2.0GHz 800MHz FSB 1MB L2 Cache
Operating System (Office software not included): Genuine Windows® XP Professional
Chassis: 17" WideUXGA 1920 x 1200 LCD with Clearview Technology - Conspiracy Blue
Motherboard: Alienware® NVIDIA® Mobile SLi Chipset
Memory: 1GB Dual Channel DDR SO-DIMM at 400MHz - 2 x 512MB
System Drive: Single Drive Configuration - 80GB Serial ATA 1.5Gb/s 5,400 RPM w/ NCQ & 8MB Cache
Optical Drive: 8x Dual Layer CD-RW/DVD±RW w/ Nero Software
Video/Graphics Card: Dual 256MB NVidia® GeForce™ Go 7900 GS - SLI Enabled
Sound Card: High-Definition Audio with surround sound
Wireless Network Card: Internal 802.11b/g WiFi Card w/ Airgo MIMO Technology
Communications: Integrated 10/1000Mb Gigabit Ethernet & 56K V.92 Modem
Bluetooth: Integrated Bluetooth® Device
Primary Battery: Alienware® m9700 12-cell Lithium-Ion Smart Battery Pack