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HP Probook 450 G9 Series

Gen 9

Processor:

Cosmetic Condition:

Functionality:

Charger Included?

The HP ProBook 450 G9, announced at CES in January 2022 and shipping from March 2022, is a 15.6-inch business notebook from HP's entry-level professional line — the larger sibling to the 14-inch ProBook 440 G9. Built on 12th-generation Intel "Alder Lake" processors inside a MIL-STD-810H tested aluminum chassis, it was sold primarily to corporations, small businesses, and managed IT fleets. As companies cycle through hardware refreshes, large numbers of these laptops are now reaching the resale market. If you're deciding where to offload an old work machine, our trade-in service buys these directly for cash — see our guide on the HP laptop trade-in process. Because the 450 G9 was configured heavily at the corporate-order level, your exact processor, memory, storage, graphics, and screen choices determine its final resale price. Select your components using the tool above to view an instant cash offer for your specific device.

Before you start: HP's ProBook 400-series naming is easy to confuse. The 450 G9 is the 15.6-inch Intel model. Its close relatives — the 14-inch 440 G9, the AMD Ryzen-based 455 G9 (same 15.6-inch chassis, different platform), and the later 450 G10 (13th-gen Intel) — are separate devices with their own quote pages. Confirm you have the 15.6-inch Intel ProBook 450 G9 before configuring, so your offer reflects the right machine.

Core hardware configurations

Processor (CPU)

  • Intel Core i3-1215U — 6 cores (2P + 4E), 8 threads, up to 4.4 GHz
  • Intel Core i5-1235U — 10 cores (2P + 8E), 12 threads, up to 4.4 GHz
  • Intel Core i7-1255U — 10 cores (2P + 8E), 12 threads, up to 4.7 GHz
  • Intel Core i7-1260P — 12 cores (4P + 8E), 16 threads, up to 4.7 GHz
  • All are 12th-gen "Alder Lake" chips; the U-series run at 15W and the P-series at 28W

Graphics (GPU)

  • Integrated Intel Iris Xe Graphics (on i5/i7 models)
  • Integrated Intel UHD Graphics (on the i3-1215U model)
  • Optional NVIDIA GeForce MX570 / MX550 (2GB GDDR6) discrete graphics on select configurations
  • Graphics are integrated into the CPU on most units — there is no upgrade path for the GPU

Memory (RAM)

  • DDR4-3200 memory across two SO-DIMM slots
  • Factory options of 8GB, 16GB, or 32GB
  • User-upgradable to a maximum of 32GB via the bottom access panel
  • Note: many units shipped with a single 16GB module (single-channel), which limits performance — adding a second matched module enables faster dual-channel operation

Storage

  • M.2 PCIe NVMe Solid State Drive (SSD)
  • Factory capacities from 128GB up to 1TB (256GB and 512GB most common)
  • Two M.2 slots: a primary 2280 slot plus a shorter 2242/2230 slot for a second drive or WWAN card
  • Both drives are accessible and replaceable via the bottom panel

Display & audio

Display

15.6-inch panels in several tiers: a standard FHD (1920 × 1080) IPS anti-glare at 250 nits (45% NTSC), a brighter Low Power FHD IPS at 400 nits (72% NTSC), and an FHD touch option. A basic HD (1366 × 768) TN panel was offered on the lowest builds. The brighter 400-nit panel is the value-driving screen choice at resale.

Audio

Dual integrated stereo speakers with a dual-array microphone, tuned for clear voice on conference calls.

Ports & connectivity

Note: there is a single USB-C port on this model, plus a modern HDMI 2.1 output — a step up from the HDMI 1.4b found on the older ProBook 640 G8.

Right Side
  • 1× USB-C 3.2 Gen 2 (10Gbps) (DisplayPort 1.4 + USB Power Delivery)
  • 1× USB-A 3.2 Gen 1 (5Gbps)
  • 1× HDMI 2.1
  • 1× RJ-45 Gigabit Ethernet
  • 1× Nano security lock slot
Left Side
  • 2× USB-A 3.2 Gen 1 (5Gbps; one always-on powered port)
  • 1× 3.5mm headphone/microphone combo jack
  • 1× Power adapter input (barrel DC-in)
  • 1× Nano SIM slot (optional, WWAN models)
  • Note: there is no SD / media card reader on this model

Intel Wi-Fi 6E AX211 Bluetooth 5.2/5.3 Optional 4G LTE WWAN

Battery, build & more

Battery & charging

3-cell 51 Whr battery with HP Fast Charge (roughly 50% in 30 minutes). HP shipped a 45W barrel-pin charger in the box; a 65W charger and USB-C Power Delivery charging are both supported. The battery is screwed in and replaceable. Battery health is a common condition factor on fleet-returned units, so grade it honestly above.

Camera & mic

Integrated 720p HD webcam with a physical privacy shutter and a dual-array digital microphone. An IR camera for Windows Hello facial sign-in was available on some builds.

Keyboard & security

Spill-resistant backlit keyboard with a full numeric keypad. Security hardware includes TPM 2.0, an optional fingerprint reader, the webcam privacy shutter, and HP Wolf Security for Business (Sure Click, Sure Sense, Sure Start).

Build & durability

All-aluminum construction tested to MIL-STD-810H standards. Serviceable design — RAM, both SSD slots, Wi-Fi module, and battery are reachable after removing a single bottom plate.

Weight

≈ 1.74–1.79 kg (3.84–3.96 lb), depending on configuration.

Dimensions

359.4 × 233.9 × 19.9 mm (14.15" × 9.21" × 0.78").

Frequently asked questions

01 How do I confirm my laptop is the ProBook 450 G9 and not a 440, 455, or 450 G10?
Check screen size, processor brand, and generation. The 450 G9 has a 15.6-inch display and runs a 12th-gen Intel Core chip; the 440 G9 is the 14-inch version, the 455 G9 shares the 15.6-inch body but uses AMD Ryzen, and the 450 G10 is the 13th-gen Intel follow-up. The exact name and "G9" generation are printed on the regulatory label on the bottom cover and appear in Windows under Settings → System → About. For step-by-step help, see our HP model-number guide or the general how to find your laptop model number walkthrough.
02 Can I upgrade the RAM and storage, and does that get me more cash?
Yes — the 450 G9 is one of the more serviceable laptops in its class. It has two SO-DIMM slots (upgradable to 32GB of DDR4-3200) and two M.2 slots, so you can run a second SSD alongside the primary 2280 drive. Many units shipped with a single 16GB stick in single-channel mode; adding a matched second module both boosts performance and is simple to do. For your quote, just report what's currently installed — 32GB of RAM and a 512GB or 1TB SSD raise your offer above the common 8GB/256GB baseline.
03 This was a work laptop — how do I make sure corporate data is wiped before I sell?
First, confirm the device has been released from any corporate management — MDM / Intune enrollment, BIOS passwords, or HP Sure Admin — since a locked machine can't be resold; check with your IT department if you're unsure. Back up anything you need, sign out of your Microsoft and other accounts, and you don't need to remove the SSD yourself. Once your laptop reaches us, our team runs certified multi-pass data sanitation on every drive. Full details are on our data erasure protocols page.
04 Which configurations raise my ProBook 450 G9 trade-in value the most?
On this business model the processor, graphics, and memory drive most of the value. A Core i7 (i7-1255U or the higher-power i7-1260P) with 16GB or more of RAM and a 512GB or 1TB SSD sits well above the entry i3 / 8GB / 256GB builds. The optional NVIDIA MX570/MX550 discrete graphics, the brighter 400-nit display, and a fingerprint reader also lift the figure. Good cosmetic condition and a healthy battery matter too; our blog on selling your laptop as a first-time seller covers how to prep for the best offer.
05 How fast do I get paid, and what payment methods are available?
After your ProBook arrives and our intake team finishes functional testing, payment is approved within about two business days. You can choose fast electronic options — PayPal, Venmo, Zelle, or Cash App — or a traditional mailed check. Inbound shipping is free and fully insured with a prepaid label. If you're clearing several units from an office refresh, we also have a bulk selling program for lots of five or more.