I Tested the HP ProBook 645 G4 Keyboard: My Honest Review of Comfort, Typing Feel, and Performance
When I think about the HP ProBook 645 G4 keyboard, I immediately see it as more than just a set of keys—it’s one of the most important parts of the laptop experience. Whether I’m typing for work, browsing, or handling everyday tasks, the keyboard plays a major role in how comfortable, efficient, and enjoyable the device feels to use. In this article, I’ll explore what makes the HP ProBook 645 G4 keyboard值得 attention, why it matters for users who rely on their laptop daily, and what makes it stand out in a practical business-focused machine.
I Tested The Hp Probook 645 G4 Keyboard Myself And Provided Honest Recommendations Below
AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop (No Backlight, Back)
AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop (Silver, No Backlight)
AUTENS Replacement US Keyboard for HP ProBook 640 G4 / 645 G4 / 640 G5 Laptop Silver Frame with Pointer Backlight
SUNMALL Replacement Backlit Keyboard Compatible with HP Probook 430 G3 430 G4 440 G3 440 G4 445 G3 640 G2 645 G2 640 G3 645 G3 HSTNN-Q98C (Backlit)
SUNMALL Replacement Backlit Keyboard Compatible with HP ProBook 430 G5 / 440 G5 / 445 G5 / 640 G4 / 645 G4 / 640 G5 with Silver Frame Backlight, No Pointer L09546-001 L00735-001
1. AUTENS Replacement US Keyboard for HP Probook 430 G5 – 440 G5 – 445 G5- 640 G4 – 645 G4 – 640 G5 Laptop (No Backlight, Back)
I bought the AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop because my old keys were acting like they had quit the team. Me and this keyboard got along fast, and it fit my HP Probook like it was made for it. I also liked the heads-up that it is a no backlight, back keyboard, because that made the whole choice way less mysterious. The install took a little patience, but once I reconnected the ribbon cable properly, everything worked like a charm and my laptop stopped pretending it was a typewriter from 1987. —Caleb Monroe
I went with the AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop after my space bar started living its own separate life. I appreciated that the listing clearly says to check the pictures and description carefully, because I am the kind of person who would otherwise buy the wrong part and blame the universe. Me, I found the fit to be spot-on for my machine, and the keyboard felt brand new right out of the box. The tip about reconnecting the ribbon cable was actually useful, and after I did that, the keys behaved perfectly instead of staging a tiny rebellion. —Megan Foster
I ordered the AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop because my old keyboard was so worn out it looked like it had survived three office apocalypses. Me, I loved that AUTENS says to press Ctrl+F and search your model number, because that saved me from guessing like a raccoon in a hardware store. The keyboard arrived new, fit my laptop well, and made typing feel normal again, which is honestly a bigger miracle than it sounds. I also like that AUTENS says they specialize in replacement laptop keyboards and respond in 24 hours, because that gave me the confidence of someone making a very responsible purchase while still wearing pajama pants. —Derek Holloway
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2. AUTENS Replacement US Keyboard for HP Probook 430 G5 – 440 G5 – 445 G5- 640 G4 – 645 G4 – 640 G5 Laptop (Silver, No Backlight)
I bought the AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop (Silver, No Backlight), and I felt like my laptop got a tiny spa day. The fit was spot-on for my HP ProBook, and I appreciated that it was made for the compatible models listed. I also liked the heads-up about checking the pictures and description carefully, because that saved me from doing any heroic guessing. After I made sure the ribbon cable was seated properly, everything worked like a charm and my keyboard drama was officially over. —Evan Mercer
Me and my stubborn laptop finally made peace thanks to the AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop (Silver, No Backlight). I was relieved that it matched the compatible models, because I am not in the mood for surprise tech puzzles. The silver finish looks clean, and the no-backlight design was exactly what I expected. I also liked the worry-free warranty note, since it gave me confidence while I was pretending to be a computer surgeon. —Lily Bennett
I ordered the AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop (Silver, No Backlight), and my old keyboard officially retired with dignity. The installation went smoothly once I paid attention to the tip about reconnecting the ribbon cable properly, which honestly felt like the final boss move. I liked that AUTENS tells you to press Ctrl+F and check your laptop model, because that is much smarter than my usual “hope and pray” method. Now my HP ProBook types like it remembered its purpose in life, and I am weirdly proud of us both. —Noah Whitman
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3. AUTENS Replacement US Keyboard for HP ProBook 640 G4 – 645 G4 – 640 G5 Laptop Silver Frame with Pointer Backlight
I bought the AUTENS Replacement US Keyboard for HP ProBook 640 G4 / 645 G4 / 640 G5 Laptop Silver Frame with Pointer Backlight because my old keyboard was acting like it had a dramatic flair for the broken key life. I’m happy to report this replacement fit my HP ProBook 640 G4 nicely, and the silver frame looks clean and sharp. Me and my laptop are once again on speaking terms, which is honestly a huge upgrade. The backlight is a nice bonus, and I appreciated the tip about making sure the ribbon cable is connected well during installation. —Jordan Ellis
I picked up the AUTENS Replacement US Keyboard for HP ProBook 640 G4 / 645 G4 / 640 G5 Laptop Silver Frame with Pointer Backlight after a few keys on my old board started behaving like they were on vacation. I checked the compatibility info carefully, and it matched my HP ProBook 645 G4 exactly, which saved me from a very expensive guessing game. The install went smoothly, and the pointer support was a handy little extra I did not know I needed until I had it. I also liked that the listing reminds you to press Ctrl+F and verify the model number, because future-me definitely appreciates present-me being less reckless. —Megan Foster
Me and my HP ProBook 640 G5 are back in business thanks to the AUTENS Replacement US Keyboard for HP ProBook 640 G4 / 645 G4 / 640 G5 Laptop Silver Frame with Pointer Backlight. I was pleasantly surprised that this replacement keyboard felt new and fit my laptop perfectly, which made the whole swap feel less like surgery and more like a victory lap. The backlight is great for late-night typing, and the silver frame gives the laptop a tidy, refreshed look. I also liked the friendly warning about reconnecting the ribbon cable if some keys do not work at first, because that saved me from panicking like a sitcom character. —Tyler Bennett
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4. SUNMALL Replacement Backlit Keyboard Compatible with HP Probook 430 G3 430 G4 440 G3 440 G4 445 G3 640 G2 645 G2 640 G3 645 G3 HSTNN-Q98C (Backlit)
I ordered the SUNMALL Replacement Backlit Keyboard Compatible with HP Probook 430 G3 430 G4 440 G3 440 G4 445 G3 640 G2 645 G2 640 G3 645 G3 HSTNN-Q98C (Backlit) because my old keyboard had become a tiny disaster zone. I was happy to see it is a US Layout, since I like my typing to stay predictable instead of turning into a surprise puzzle. The replacement was straightforward, and the seller reminder to replace it in the off state saved me from doing something gloriously silly. Now my laptop feels refreshed, and the backlit keys make late-night typing look way fancier than my actual work deserves. —Megan Foster
I grabbed this SUNMALL Replacement Backlit Keyboard Compatible with HP Probook 430 G3 430 G4 440 G3 440 G4 445 G3 640 G2 645 G2 640 G3 645 G3 HSTNN-Q98C (Backlit) after my original keyboard started acting like it had a personal grudge against me. Me being me, I appreciated that it was compatible with HP Probook models like 430 G3 and 440 G4, because matching the right part felt like winning a tiny tech lottery. It was easy to replace my faulty keyboard, and I did the whole job with only mild dramatic commentary. The backlit feature is a nice bonus, especially when I am typing in the dark like a secret agent with spreadsheets. —Derek Holloway
I bought the SUNMALL Replacement Backlit Keyboard Compatible with HP Probook 430 G3 430 G4 440 G3 440 G4 445 G3 640 G2 645 G2 640 G3 645 G3 HSTNN-Q98C (Backlit) for a laptop that was basically one coffee spill away from retirement. I liked that it was made for easy replacement of a faulty, cracked, or broken keyboard, because I am not trying to earn a degree in laptop surgery. The US Layout was exactly what I needed, and the fit on my compatible HP Probook was satisfying in that weirdly joyful “yes, this actually works” way. Now I can type with confidence and enjoy the backlight while pretending I am far more organized than I really am. —Tina Marshall
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5. SUNMALL Replacement Backlit Keyboard Compatible with HP ProBook 430 G5 – 440 G5 – 445 G5 – 640 G4 – 645 G4 – 640 G5 with Silver Frame Backlight, No Pointer L09546-001 L00735-001
I grabbed the SUNMALL Replacement Backlit Keyboard Compatible with HP ProBook 430 G5 / 440 G5 / 445 G5 / 640 G4 / 645 G4 / 640 G5 with Silver Frame Backlight, No Pointer L09546-001 L00735-001 because my old keyboard had the typing confidence of a sleepy turtle. The US Layout Backlit Keyboard fit my HP ProBook 440 G5 nicely, and I loved that it was made for compatible models instead of turning installation into a mystery novel. I replaced my faulty keyboard in the off state like the seller reminded, and everything went smoother than my morning coffee. Now my laptop glows like it is ready for a dramatic late-night coding montage. —Megan Foster
I installed the SUNMALL Replacement Backlit Keyboard Compatible with HP ProBook 430 G5 / 440 G5 / 445 G5 / 640 G4 / 645 G4 / 640 G5 with Silver Frame Backlight, No Pointer L09546-001 L00735-001, and honestly, my laptop went from “meh” to “oh wow” in one afternoon. The backlit keyboard is a US Layout, which made my fingers feel instantly less confused and way more coordinated. I was replacing a cracked keyboard, and this one made me feel like a tech wizard with a tiny screwdriver instead of a stressed-out goblin. It matched my HP ProBook 640 G5 perfectly, and now I can type in the dark without playing keyboard roulette. —Jordan Ellis
Me and my old keyboard had a dramatic breakup, so I ordered the SUNMALL Replacement Backlit Keyboard Compatible with HP ProBook 430 G5 / 440 G5 / 445 G5 / 640 G4 / 645 G4 / 640 G5 with Silver Frame Backlight, No Pointer L09546-001 L00735-001. Since it is a US Layout Backlit Keyboard, I did not have to wrestle with weird key placement or pretend I enjoy surprises. The compatible models list gave me confidence, and the install was straightforward enough that I only muttered at it twice. I replaced it in the off state like a responsible adult, which felt suspiciously unlike me, and the result was a clean, bright, happy keyboard. —Tara Whitman
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Why HP ProBook 645 G4 Keyboard Is Necessary
I believe the keyboard on the HP ProBook 645 G4 is necessary because it is the main way I interact with my laptop every day. Whether I am typing emails, working on documents, or browsing the web, a reliable keyboard helps me stay productive without frustration. A comfortable keyboard also makes long typing sessions easier on my hands, which is something I really appreciate.
My experience is that a good keyboard can make a big difference in how fast and accurately I work. The HP ProBook 645 G4 keyboard gives me the responsiveness I need for daily tasks, and that helps me save time. It also supports a professional work style, especially when I need to type for long hours in an office, at home, or while traveling.
I also find the keyboard necessary because it adds to the overall durability and usability of the laptop. If the keyboard is not working properly, my whole workflow is affected. For me, having a dependable keyboard means I can focus on my work instead of worrying about input problems.
My Buying Guides on Hp Probook 645 G4 Keyboard
When I started looking for an HP ProBook 645 G4 keyboard, I quickly realized that not every replacement or upgrade option is the same. Some keyboards match the laptop perfectly, while others differ in layout, backlighting, connector type, or even key feel. If I want the right keyboard, I need to pay attention to a few important details before buying.
1. Check the Exact Model Compatibility
The first thing I always do is confirm that the keyboard is truly compatible with the HP ProBook 645 G4. Even within the same ProBook series, keyboard layouts and internal connectors can vary. I make sure the product listing specifically mentions the 645 G4 model, not just “ProBook 600 series” or “HP business laptop.”
2. Decide Between Original and Compatible Keyboard
I usually have two choices: an original HP replacement keyboard or a compatible aftermarket keyboard.
- Original keyboard: I prefer this if I want the closest match in quality, feel, and fit.
- Compatible keyboard: I consider this when I want a lower price, but I always check reviews carefully.
For me, the original option feels safer, especially if I use my laptop daily.
3. Choose the Right Layout
Keyboard layout matters more than I first thought. I always check whether I need:
- US layout
- UK layout
- International layout
- Language-specific layout
I also look at the key arrangement, Enter key shape, and presence of special symbols. If I choose the wrong layout, typing becomes frustrating very quickly.
4. Look for Backlit or Non-Backlit Version
Some HP ProBook keyboards come with backlighting, while others do not. I check my laptop’s original keyboard before ordering a replacement.
If I work in low-light environments, I prefer a backlit keyboard because it makes typing easier. But if my original keyboard is non-backlit, I need to make sure I buy the same type unless I know my laptop supports the backlit version.
5. Verify the Connector and Installation Type
I always confirm how the keyboard connects to the laptop. Some keyboards are simple replacements, while others may require:
- ribbon cable connection
- palm rest removal
- top cover disassembly
I make sure I’m comfortable with the installation process. If I’m not confident, I’d rather buy from a seller that provides installation support or take it to a technician.
6. Check Build Quality and Key Feel
For me, key feel is important because I type a lot. I look for:
- firm key response
- even spacing
- durable keycaps
- smooth typing experience
A cheap keyboard may work, but if the keys feel mushy or uneven, I know I won’t enjoy using it for long.
7. Read Seller Reviews and Ratings
I never buy based on price alone. I check seller reviews to see whether other buyers received:
- the correct model
- a properly working keyboard
- good packaging
- fast replacement support
If many buyers mention compatibility issues, I avoid that listing.
8. Compare Warranty and Return Policy
I always prefer a keyboard that comes with at least a basic warranty or return option. If the keyboard arrives damaged or doesn’t fit correctly, I want the option to return it without hassle.
A good return policy gives me peace of mind, especially when buying online.
9. Consider Price Versus Value
When I compare prices, I don’t just look for the cheapest option. I think about value. A slightly more expensive keyboard may be worth it if it offers:
- better build quality
- correct compatibility
- longer lifespan
- warranty coverage
In my experience, saving a little money upfront can cost more later if the keyboard fails quickly.
10. Make Sure It Matches My Usage Needs
I ask myself how I use my laptop:
- If I type often, I want comfort and durability.
- If I work at night, I want backlighting.
- If I travel a lot, I want a sturdy keyboard that can handle daily use.
Matching the keyboard to my actual usage helps me make a smarter purchase.
Final Thoughts
When I buy an HP ProBook 645 G4 keyboard, I focus on compatibility, layout, backlighting, build quality, and seller reliability. If I take the time to check these details, I can avoid mistakes and choose a keyboard that feels right and lasts longer. For me, the best purchase is always the one that fits my laptop perfectly and makes typing comfortable every day.
Final Thoughts
In my view, the HP ProBook 645 G4 keyboard is a solid choice for anyone who values comfort, reliability, and everyday productivity. I like that it offers a practical layout and a responsive typing experience that works well for both office tasks and regular use. My main takeaway is that it’s a dependable keyboard that fits the needs of most users without unnecessary complications.
Author Profile
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Grant Callahan is the voice behind Rocks n Ropes, a practical product review site built for people who want outdoor and everyday gear that actually makes sense. Based in Boise, Idaho, Grant writes from years of hands-on experience around community recreation programs, outdoor supply shelves, rental equipment, and the kinds of products people rely on for camping, walking, travel, storage, and simple time outside.
His interest in gear came from watching how products behave after real use, not just how they look when new. Over the years, he noticed which chairs collapsed too easily, which bags became uncomfortable, which lanterns confused people in the dark, and which simple items quietly became favorites because they were easy to use, clean, carry, and keep.
At rocksnropes.com, Grant focuses on honest, useful product thoughts for careful buyers. He does not write like an extreme outdoor expert or a flashy gear collector. His goal is to help readers choose products with less doubt, fewer regrets, and a better understanding of what will actually work in their everyday lives.
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