ZhanPeng
Genuine HP ProOne 400 G2 All-in-One PC Slim 19.5V 6.15A 120W AC Power Supply Adapter
Genuine HP ProOne 400 G2 All-in-One PC Slim 19.5V 6.15A 120W AC Power Supply Adapter
Couldn't load pickup availability
HP ProOne 400 G2 120W AC Adapter — 19.5V 6.15A, 7.4x5.0mm Connector
120W power supply for HP ProOne 400 G1/G2, ProOne 480 G2, ENVY 27-P014, and Pavilion 27se All-in-One PCs. 19.5V, 6.15A output, 7.4mm x 5.0mm connector with center pin. Replaces 730982-002, 801637-001, PA-1121-62HC and 12+ part numbers. US/EU/AU/UK power cord.
Product Overview
This 120W AC adapter powers HP ProOne All-in-One business PCs and large-screen HP AIO desktops. 19.5V, 6.15A output. The 7.4mm x 5.0mm barrel connector with center pin is the large HP blue-tip used by ProOne, ENVY AIO, and Pavilion AIO models — not the smaller 4.5x3.0mm used by most HP laptops. Choose US, EU, AU, or UK power cord.
Key Specifications
| Spec | Detail |
|---|---|
| Input | 100-240V AC, 2.0A, 50-60Hz — worldwide |
| Output | 19.5V DC, 6.15A — 120 Watts |
| Connector | 7.4mm x 5.0mm barrel with center pin (large HP blue tip) |
| Power Cord | US / EU / AU / UK plug — select at order |
| Condition | Genuine HP |
| Warranty | 3 months |
| Compatible Devices | HP ProOne 400 G1/G2, ProOne 480 G2, ENVY 27-P014, Pavilion 27se AIO |
Replaces These HP Part Numbers
| Part Number | Type |
|---|---|
| 730982-001 / 730982-002 / 730982-003 | HP spare part numbers (revisions) |
| 801637-001 / 801637-002 / 801637-003 | HP spare part number variants |
| PA-1121-62HC / ADP-120MH T / A120A02CH | Manufacturer model numbers (LiteOn/Chicony) |
| HSTNN-LA25 / HSTNN-CA25 / HSTNN-DA25 | HP internal identification codes |
| NSW25775 / 5400007901 REV:A00 / 9T54 E132068 | Additional cross-reference numbers |
Connector: 7.4x5.0mm — Not the Standard Laptop Tip
| Connector | Used On | This Adapter? |
|---|---|---|
| 7.4mm x 5.0mm (large tip) | ProOne AIO, ENVY AIO, Pavilion AIO, older HP notebooks | YES — this adapter |
| 4.5mm x 3.0mm (small tip) | HP OMEN, ZBook, EliteBook, ProBook G3+ laptops | NO — different adapter |
Why This 120W HP Adapter
120W AIO Power
19.5V at 6.15A — full power for ProOne 400 G2 touchscreen AIO PCs and 27-inch ENVY/Pavilion AIO displays.
16 Part Numbers Replaced
730982-series, 801637-series, PA-1121-62HC, HSTNN-LA25/CA25/DA25, ADP-120MH T and more.
4 Plug Options
US, EU, AU, or UK power cord — select at order. Worldwide 100-240V input.
Frequently Asked Questions
Q: Is this 120W adapter compatible with my HP ProOne AIO?
A: It fits HP ProOne 400 G1 (21.5-inch), ProOne 400 G2 (20-inch), ProOne 480 G2, ENVY 27-P014, and Pavilion 27se Touch AIO — plus any HP device using a 120W adapter with a 7.4x5.0mm connector. Verify your original adapter's part number: 730982-002, 801637-001, or any number in the table above confirms compatibility.
Q: Will this work with my HP laptop?
A: Only if your laptop uses the 7.4x5.0mm large connector. Most HP laptops (OMEN, ZBook, EliteBook, ProBook G3+) use the smaller 4.5x3.0mm tip — those need a different adapter. Measure the outer diameter of your old plug: 7.4mm = this fits; 4.5mm = wrong adapter.
Q: What part numbers does this adapter replace?
A: 16 part numbers: 730982-001/002/003, 801637-001/002/003, PA-1121-62HC, ADP-120MH T, A120A02CH, HSTNN-LA25, HSTNN-CA25, HSTNN-DA25, NSW25775, 5400007901, 9T54 E132068.
Q: Which power cord plug do I choose?
A: Select US, EU, AU, or UK at order. The adapter itself accepts 100-240V worldwide — only the detachable AC cord differs by region.
Q: Can I use this 120W adapter on a 65W or 90W HP AIO?
A: Yes, if the connector matches (7.4x5.0mm). The device draws only what it needs — a 120W adapter on a 65W device is safe and provides extra headroom. Voltage must match: 19.5V.
Summary
| Output | 19.5V DC, 6.15A — 120W |
| Connector | 7.4mm x 5.0mm with center pin (large HP tip) |
| Compatible | ProOne 400 G1/G2, ProOne 480 G2, ENVY 27-P014, Pavilion 27se AIO |
| Replaces | 16 HP part numbers (730982-002, 801637-001, PA-1121-62HC, etc.) |
This is a third-party replacement product sold by ZhanPeng, operated by Changsha Liping Technology Co., Ltd. It is not manufactured by or affiliated with the original device manufacturer. All brand names, model numbers, and trademarks referenced are the property of their respective owners and are used solely to indicate product compatibility. ZhanPeng is an independent retailer and is not sponsored, authorized, or otherwise connected with the original equipment manufacturer.