Yes, that is an alternative option if you cannot find a 2242 M.2 drive, though the 2242 M.2 option allows you to have both a fast boot drive and a large storage drive simultaneously. If you'd like, I can:
Here’s a clearer explanation of what you need to look for: hp probook 450 g2 m2 ssd compatibility
Physical keying is the easiest way to tell which drive your laptop can accept. The ProBook 450 G2 uses a M.2 slot (or a B+M key). In practice, this means: Yes, that is an alternative option if you
The HP ProBook 450 G2 is a durable, professional-grade laptop that remains popular for its reliability. However, its stock hard drive can make it feel slow by modern standards. Upgrading to an M.2 SSD is one of the best ways to significantly improve responsiveness, but understanding is crucial to choosing the right part. The Short Answer: What M.2 SSD Does It Need? In practice, this means: The HP ProBook 450
Only M.2 2280 (22mm wide, 80mm long) SATA SSDs will work. Your slot likely has a screw standoff at the 80mm position.
: It requires the 2242 size (42mm length). The standard 2280 size commonly used in modern laptops will not fit in this specific slot.
In the ProBook 450 G2, the M.2 slot and the 2.5‑inch SATA port operate independently. You can use both simultaneously without any performance penalty.