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HP 90W 7.4mm Laptop Adaptor | 19V 4.74A Output | 7.4x5.0mm Big Pin | Detachable Mains Cord
Extra headroom for mid-range business and home machines with dedicated graphics, kept going through long office days.
Condition: New
Note: price and availability are subject to change without prior notice
Mascom International stocks the HP 90W 7.4mm Laptop Adaptor at KSh 1,600, brand new and sealed, with a 19V output at 4.74A through the 7.4x5.0mm big pin plug. Multiply those figures and you get 90 watts, the rating many HP laptops with larger screens or separate graphics chips were sold with. The HP 90W 7.4mm Laptop Adaptor is a replacement adaptor for HP laptops, built as a two-piece brick: an attached DC cable on one end and a detachable mains cord on the other. Pick one up at Old Mutual Building on Kimathi Street, Nairobi CBD, or order for pay-on-arrival delivery.
Designed for accountants, sales teams, NGO field staff and university students who keep an older HP laptop working, the HP 90W 7.4mm Laptop Adaptor restores full charging when the old brick dies or the cable frays. Lost adaptors are common too: one left behind in a Kisumu hotel or a Mombasa client office can stall a whole working week. A 90W unit also gives owners of 65W big pin HP laptops a spare with extra margin, at the same price as the 65W model. With the HP 90W 7.4mm Laptop Adaptor plugged in, the battery charges even while spreadsheets, browsers and video calls stay open.
Unlike other electronics retailers in Kenya that sell chargers by plug shape alone, Mascom International reads the rating on your laptop and old adaptor before recommending a match. Buyers throughout Kenya report that our WhatsApp check saved them from buying the wrong wattage or a look-alike Dell plug. Send your HP model number or a label photo to +254 708 852 521 for a quick answer. You can also bring the laptop to our Nairobi CBD shop and watch the HP 90W 7.4mm Laptop Adaptor charge it before paying, or order online and pay when the parcel reaches you.
Common Questions About the HP 90W 7.4mm Laptop Adaptor
How much is the HP 90W 7.4mm Laptop Adaptor in Kenya?
The HP 90W 7.4mm Laptop Adaptor sells for KSh 1,600, brand new, at Mascom International in Nairobi CBD. For that amount you receive the brick with its fixed DC cable, a detachable mains cord and a 6-month warranty, with pay-on-arrival delivery across Kenya. It costs the same as the HP 65W 7.4mm Laptop Adaptor and KSh 1,200 less than the HP 135W 7.4mm Laptop Adaptor, so the added capacity over the 65W unit costs nothing extra.
How do I know if my HP laptop needs the HP 90W 7.4mm Laptop Adaptor?
Your HP laptop needs the HP 90W 7.4mm Laptop Adaptor when its label or old brick reads 19V and 4.74A, or 90W, with a round big pin plug. Look on the underside of the laptop, inside the battery bay on older models, or on the old adaptor's sticker. Some older Pavilion, ProBook, EliteBook and Compaq models with the big pin used 90W. If the label has faded, send your model number on WhatsApp and Mascom International confirms it.
Should I buy the HP 90W 7.4mm Laptop Adaptor or the HP 65W 7.4mm Laptop Adaptor?
Pick the HP 90W 7.4mm Laptop Adaptor if your laptop is rated 90W, and note that most 65W big pin HP laptops accept it too. Both cost KSh 1,600 and share the 7.4x5.0mm plug. The 90W unit supplies 19V at 4.74A, while the 65W supplies 18.5V at 3.5A. The 65W brick is smaller and lighter, so students who commute daily often prefer it. Offices wanting one adaptor for several HP laptops get more flexibility from the 90W.
Can I run the HP 90W 7.4mm Laptop Adaptor from a solar inverter or generator?
Yes, the HP 90W 7.4mm Laptop Adaptor runs from a solar inverter or generator that supplies stable 240V AC, which helps during long KPLC outages. A pure sine wave inverter is the safer choice, since cheaper modified sine wave units can make adaptors buzz or run warm. Start the generator first, let it settle, then plug in the laptop. Many homes in Machakos, Kitengela and rural Nyanza rely on solar backup, and a surge protector between inverter and adaptor adds protection.
Can I leave the HP 90W 7.4mm Laptop Adaptor plugged in all day?
You can leave the HP 90W 7.4mm Laptop Adaptor connected through a full office day, because the laptop stops drawing charging current once the battery is full. The brick feels warm while working, which is normal. Keep it on a hard surface with air around it, not under papers or a cushion. At the end of the day, switch off at the wall, especially in buildings where power flickers, so the adaptor is not exposed to surges overnight.
Who is the HP 90W 7.4mm Laptop Adaptor right for, and who should look elsewhere?
The HP 90W 7.4mm Laptop Adaptor suits owners of 90W big pin HP laptops and anyone wanting one spare that also covers most 65W big pin HP models. Look elsewhere if your machine is a high-draw gaming notebook or workstation rated 135W; the HP 135W 7.4mm Laptop Adaptor at KSh 2,800 fits that need. Newer HP laptops with a blue-tipped plug or USB-C charging also need a different adaptor, such as the HP 65W Blue Pin Laptop Adaptor.
What are the signs that my old HP adaptor needs replacing?
An HP adaptor needs replacing when the laptop charges only with the cable held at an angle, the battery icon flickers between charging and not charging, or the brick runs unusually hot. Frayed insulation near the plug, a loose centre pin or a burning smell are also clear warnings, so stop using a damaged adaptor straight away. The HP 90W 7.4mm Laptop Adaptor replaces a worn 90W brick, and our Kimathi Street staff can test whether the fault lies in the adaptor or the laptop socket.
Is the HP 90W 7.4mm Laptop Adaptor a good spare for home and office?
Keeping a second HP 90W 7.4mm Laptop Adaptor at home saves you carrying one brick back and forth every day. Executives and lawyers who split time between an Upper Hill office and a home in Karen or Runda often keep one at each desk. That leaves the laptop bag lighter and spares the cable from daily bending. At KSh 1,600 each, a spare also guards against a sudden failure on the eve of a presentation or a KRA filing deadline.
Technical Specifications
Power Output and Core Function
- 19V at 4.74A output — the two figures multiply to 90 watts, which covers HP laptops with larger screens or separate graphics chips.
- 90W rating signalled through the centre pin — the laptop recognises the adaptor's capacity and charges the battery while you keep working normally.
- Converts AC mains to DC — the brick changes wall electricity into the steady low-voltage current your laptop's battery and circuits require.
- Suited to standard 240V mains — the detachable cord plugs into ordinary sockets at home, in the office, at a hotel or on campus.
- Charges during everyday multitasking — office suites, many browser tabs, Zoom or Teams calls and video streaming all run while the battery fills.
- Covers most 65W big pin HP laptops as well — the laptop takes only the current it needs, leaving the extra 25 watts in reserve.
Compatibility and Connector Fit
- 7.4x5.0mm big pin plug — a round barrel 7.4mm across, with a 5.0mm opening around a slim centre pin used for identification.
- Matches HP laptops labelled 19V 4.74A or 90W — including some older Pavilion, ProBook, EliteBook and Compaq models fitted with the big pin.
- Voltage and plug decide the match — many HP big pin laptops shipped with either 18.5V or 19V adaptors, so check both on the label.
- Not for 135W machines — high-draw gaming notebooks and workstations need the HP 135W 7.4mm Laptop Adaptor to keep charging under heavy load.
- Not for blue-tipped HP plugs, USB-C laptops or Dell 7.4mm machines — those use different connectors or a different identification signal.
- Quick confirmation — message your model number or a photo of the old adaptor label to +254 708 852 521 before you order.
Build and Everyday Use
- Two-piece brick — the electronics sit in a compact body between the fixed laptop cable and a separate socket for the mains cord.
- Separate mains cord — a damaged wall-side cord can be swapped on its own, which is cheaper than replacing the whole adaptor.
- Mid-size body — smaller than a 135W brick and a little larger than a 65W unit, so it fits a standard laptop bag pocket.
- Warm during use — normal for a 90W brick, so give it open air on a desk rather than covering it with papers or bedding.
- Cable care — loop the DC cable in loose coils and avoid sharp bends at the plug, where cable breaks usually start.
- Surge protection recommended — route the mains cord through a surge protector or UPS to shield the adaptor from voltage spikes after outages.
Inclusions and After-Sales Support
- Adaptor brick with an attached DC cable ending in the 7.4x5.0mm big pin plug for your HP laptop.
- Detachable mains power cord to connect the brick to a wall socket, power strip or UPS unit.
- Mains plug type confirmed on WhatsApp before dispatch, to match local 3-pin UK-style sockets.
- 6-month Mascom International warranty against manufacturing defects, claimed at the Nairobi CBD service desk.
- Pay-on-arrival delivery to all 47 counties, with same-day delivery in Nairobi and its environs.
- Counter testing at Old Mutual Building — bring your laptop and confirm it charges before any money changes hands.
Package Contents
Inside the package you will find the HP 90W 7.4mm Laptop Adaptor brick with its attached DC cable and 7.4x5.0mm big pin plug, together with a detachable mains power cord. Kenyan sockets take 3-pin UK-style plugs, and the plug fitted to the cord can differ between batches, so message us on WhatsApp to confirm the plug type before we dispatch. Each unit is brand new. No laptop, battery, bag or surge protector is included.
Warranty
The HP 90W 7.4mm Laptop Adaptor ships with a 6-month warranty through Mascom International, covering manufacturing defects under normal use. Should the adaptor stop charging or develop a fault in that time, bring it and your receipt to our Nairobi CBD service desk at Old Mutual Building, Kimathi Street, where claims are assessed and handled.
Buying the HP 90W 7.4mm Laptop Adaptor from Mascom International
Find the HP 90W 7.4mm Laptop Adaptor at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD, open Monday through Saturday, 9:00 AM to 7:00 PM. Bring your HP laptop along and our staff will connect it at the counter, so you can watch the battery icon switch to charging. It comes in a black finish; confirm on WhatsApp if the colour matters to you.
For model checks, orders and stock updates, contact us here:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
Payment happens on arrival, and we deliver to all 47 counties. Orders within Nairobi and its environs arrive the same day, and buyers in Mombasa, Kisumu, Nyeri, Machakos and other major towns receive theirs within 1 business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
Your purchase is covered by the 6-month warranty described above. We stand behind clear ratings, honest pricing and after-sales help from a physical shop in the CBD, so you always know who to call if anything goes wrong.
Disclaimer: We can not guarantee that the information on this product is 100% correct
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