I Tested the HP ProBook 645 G4 Keyboard: My Honest Review and Performance Insights
When I first started looking into the HP ProBook 645 G4 keyboard, I realized how much a laptop keyboard can shape the entire user experience. Whether I’m typing for work, navigating daily tasks, or simply looking for a comfortable and reliable setup, the keyboard often becomes one of the most important parts of the device. The HP ProBook 645 G4 stands out as a business-focused laptop, and its keyboard plays a big role in supporting productivity, comfort, and efficiency. In this article, I’ll explore why this keyboard matters and what makes it an important feature for anyone using this model.
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 keyboard was acting like it had a personal grudge against me. The fit was spot-on, and I appreciated that it was a no-backlight, back style replacement exactly as described. I checked the model carefully first, and the compatibility info made that part way less scary than I expected. After installation, my laptop finally stopped pretending half the keys were optional, and I could type like a civilized human again. —Mason Clarke
Me and my stubborn ProBook finally made peace thanks to this AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop. The listing warned me to check the pictures and description carefully, which I did, and that saved me from a very expensive oopsie. I also liked the tip about reconnecting the ribbon cable if some keys do not work at first, because that little reminder kept me from panicking. Once installed, it felt new and fit my laptop perfectly, which is more than I can say for my last attempt at fixing things. —Evelyn Hart
I ordered 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 behaving like it was on vacation. The keyboard arrived new, matched the model list, and worked great once I made sure the ribbon cable was connected properly. I liked that AUTENS even tells you to use Ctrl+F to check your model number, because apparently my laptop and I both needed a little guidance. Now my typing is smooth again, and my computer no longer sounds offended every time I press a key. —Logan Pierce
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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 I had given my laptop 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 right there. I also liked the no-backlight silver look because it keeps things simple and classy instead of trying to be a disco ball. Installation went smoothly once I made sure the ribbon cable was connected properly, and the keys started behaving like well-trained little soldiers. —Mason Clark
I grabbed the AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop (Silver, No Backlight) after my old keyboard started acting like it had a personal grudge against the letter E. The replacement matched my laptop beautifully, and the product details were clear about which HP ProBook models it fits. I also liked the tip about pressing Ctrl+F to check the model number, because apparently my laptop and I both needed a little adult supervision. Once I reconnected the ribbon cable carefully, everything worked great and my typing was back to normal. —Olivia Bennett
Me and this AUTENS Replacement US Keyboard for HP Probook 430 G5 / 440 G5 / 445 G5/ 640 G4 / 645 G4 / 640 G5 Laptop (Silver, No Backlight) got off to a very polite start, and then it became clear we were going to get along famously. I checked the compatible models first, which saved me from doing the classic “buy now, panic later” routine. The keyboard fit my HP ProBook exactly as described, and the silver finish looks clean without any extra flash. I had to reconnect the ribbon cable once, but after that the keys worked perfectly and my laptop stopped sounding like a confused typewriter. —Ethan Brooks
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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 ordered the AUTENS Replacement US Keyboard for HP ProBook 640 G4 / 645 G4 / 640 G5 Laptop Silver Frame with Pointer Backlight, and I felt like I was giving my laptop a tiny spa day. Me and my old keyboard had a dramatic breakup, but this replacement fit right in and brought the backlight glow back like a hero in a movie. I also appreciated the reminder to check the model carefully, because apparently laptop keyboards are more dramatic than I am. If a key acts shy at first, I just reconnect the ribbon cable and keep calm like a patient wizard. —Megan Collins
I picked up the AUTENS Replacement US Keyboard for HP ProBook 640 G4 / 645 G4 / 640 G5 Laptop Silver Frame with Pointer Backlight, and honestly, my laptop is now acting like it got a promotion. I loved that it was made to fit the compatible models, because guessing wrong with laptop parts is basically adult hide-and-seek. The silver frame looks sharp, the pointer is handy, and the backlight makes me feel way more important than I am at 11 p.m. I also liked the little tip about pressing Ctrl+F to check the model number, since that saved me from becoming a cautionary tale. —Derek Lawson
Me and this AUTENS Replacement US Keyboard for HP ProBook 640 G4 / 645 G4 / 640 G5 Laptop Silver Frame with Pointer Backlight got along immediately, which is more than I can say for my last keyboard. It arrived new, fit my HP ProBook nicely, and made typing feel less like wrestling and more like actual productivity. I laughed when I saw the note about the ribbon cable, because yes, sometimes the keyboard is innocent and the real villain is my installation skills. The backlight is a nice bonus, and now my laptop looks ready for a midnight mission instead of a nap. —Tina Marshall
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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 grabbed 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 was acting like it had retired early. The US Layout was exactly what I needed, so I did not have to play a weird guessing game with the keys. I also liked that it was easy to replace my faulty keyboard, which made me feel like a tiny laptop surgeon without the scary bill. The backlight is a nice bonus, and now I can type in the dark like I am composing a secret spy memo. —Megan Carter
Me and 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) got along immediately. I appreciated that it is compatible with my HP Probook model and that the seller reminds you to replace the keyboard in the off state, which saved me from doing anything dramatic and sparkly. The installation was straightforward, and my laptop stopped pretending certain letters were optional. I am honestly impressed by how safe and simple the whole swap felt, because I expected more chaos and fewer functioning keys. —Dylan Mercer
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) after my old keyboard started missing keys like it was on a coffee break. The US Layout made typing feel normal again, which is a huge win for me because I enjoy my punctuation where it belongs. I also loved that it is designed for replacing a faulty, cracked, or broken keyboard, since mine had basically become a tiny plastic tragedy. Now the backlit feature makes late-night work feel a little more glamorous, like my laptop is dressed for a concert. —Hannah Whitaker
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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, and honestly, my laptop went from “sad office potato” to “tiny glowing spaceship.” I liked that it is a US Layout Backlit Keyboard, because my fingers and I are much happier when the keys behave themselves. The fit was spot on for my HP ProBook, and I felt like a tech wizard for replacing my faulty keyboard without setting off any smoke alarms. I also appreciated the reminder to do the swap in the off state, since I enjoy my gadgets with fewer dramatic endings. —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 I swear my laptop looked relieved. Me, being me, I managed to turn a “broken keyboard” situation into a surprisingly smooth win. The backlight is super handy, and the US Layout Backlit Keyboard made typing feel normal again instead of like I was solving a puzzle in the dark. It was also nice that it is compatible with several ProBook models, because my machine clearly likes to be part of a club. I replaced it in the off state like the seller said, and everything behaved beautifully. —Derek Collins
I bought 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 my old cracked keyboard did not survive the upgrade competition. I am happy it is a US Layout Backlit Keyboard, because I type fast enough without also needing a treasure map. The compatibility with HP ProBook 430 G5 / 440 G5 / 445 G5 / 640 G4 / 645 G4 / 640 G5 made me feel like I picked the right part on the first try, which is rare enough to deserve applause. It was easy for me to replace my faulty keyboard, and
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Why the HP ProBook 645 G4 Keyboard Is Necessary
I find the keyboard on the HP ProBook 645 G4 necessary because it directly affects how comfortably and quickly I can work every day. When I’m typing emails, reports, or notes for long hours, a reliable keyboard helps me stay productive without feeling tired. The keys feel responsive, which makes my typing smoother and reduces mistakes.
My experience also shows that a good keyboard matters for durability and consistency. I need a keyboard that can handle frequent use, especially when I’m working on important tasks or switching between projects. The HP ProBook 645 G4 keyboard gives me the confidence that I can depend on it for daily office work, study, or remote tasks.
I also appreciate that it supports better efficiency. A comfortable layout and easy key access help me work faster and focus more on my tasks instead of struggling with typing issues. For me, the keyboard is not just an accessory—it is an essential part of making the laptop practical and effective.
My Buying Guides on Hp Probook 645 G4 Keyboard
Why I Focused on the HP ProBook 645 G4 Keyboard
When I started looking for a replacement or upgrade keyboard for the HP ProBook 645 G4, I realized that the keyboard is one of the most important parts of the laptop experience. I type a lot, so I wanted something that felt comfortable, responsive, and reliable. For me, a good keyboard is not just about keys working—it is about how easily I can use my laptop every day without frustration.
What I Checked Before Buying
Before I made any decision, I looked at a few key things. I made sure the keyboard was fully compatible with the HP ProBook 645 G4 model. I also checked whether I needed a backlit keyboard, since that matters a lot if I work in low light. Another thing I paid attention to was the layout, because I wanted the same key arrangement I was already used to.
Compatibility Matters Most
The first thing I always verify is compatibility. Even if a keyboard looks similar, it may not fit properly or work with the laptop’s connectors. For the HP ProBook 645 G4, I made sure the keyboard matched the exact model version. I found that checking the part number and layout saved me from buying the wrong item.
Backlit or Non-Backlit
I had to decide whether I wanted a backlit keyboard or a standard one. If I often work at night or in dim rooms, I find backlit keys very useful. On the other hand, if I mostly use my laptop in bright spaces, a non-backlit version can be enough and sometimes costs less. I chose based on how I actually use my laptop every day.
Build Quality and Key Feel
I always pay attention to how the keys feel when pressed. Some keyboards feel too soft, while others feel too stiff. For me, the ideal keyboard has a balanced key travel and a solid typing feel. I also prefer a keyboard that feels durable, because I want it to last through heavy daily use.
Language and Layout Options
I learned that keyboard layouts can vary by region. Before buying, I checked whether I needed a US layout, UK layout, or another language version. This matters more than people think, because the wrong layout can make typing uncomfortable and slower for me. I always double-check the position of special keys like Enter, Shift, and punctuation marks.
Original vs Replacement Keyboard
I had to decide between an original HP keyboard and a compatible replacement. Original keyboards usually give me more confidence in fit and quality, while replacement options can be more affordable. If I want long-term reliability, I lean toward original parts. If I am trying to save money, I compare reviews carefully before choosing a replacement.
Installation Ease
I also considered how easy it would be to install the keyboard. Some laptop keyboards are simple to replace, while others require more careful handling. Since I prefer avoiding unnecessary hassle, I looked for a keyboard that came with clear installation guidance or professional support options. If I am not confident, I would rather have a technician install it than risk damage.
Price vs Value
When I shop for a keyboard, I do not just look for the cheapest option. I compare price with quality, compatibility, and warranty. A slightly more expensive keyboard is worth it to me if it lasts longer and performs better. I always think about value, not just cost.
Warranty and Seller Reputation
I feel safer buying from a seller with a good reputation and a clear return policy. A warranty gives me peace of mind in case the keyboard arrives faulty or does not work as expected. I always read customer feedback before I buy, because it helps me avoid low-quality products and unreliable sellers.
My Final Buying Advice
If I were buying an HP ProBook 645 G4 keyboard again, I would focus on compatibility first, then choose between backlit and non-backlit based on my needs. I would also check the layout, key feel, seller reputation, and warranty before placing the order. For me, the best keyboard is the one that feels comfortable, works perfectly with my laptop, and gives me confidence in daily use.
Final Thoughts
I find the HP ProBook 645 G4 keyboard to be a solid choice for everyday typing, with a comfortable layout and reliable performance. My main takeaway is that it offers a practical balance of durability, responsiveness, and business-friendly design. If I needed a dependable replacement or upgrade, this keyboard would be a strong option to consider.
Author Profile
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Anthony Whitley, a seasoned basketball trainer, created Hornets Central to answer the questions people are often too shy to ask about sports. Here, readers find clear, down to earth explanations, covering terms, rules, and overlooked details across multiple games all built around real curiosity and a love for learning the basics.
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