Printers
HP LaserJet Pro 400 M451nw reviews
Product specifications and review coverage for this exact model.
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Product overview
HP CE956A-RFB is listed in the laser printers category. The recorded specifications include print technology: Laser; colour printing: Yes; duplex printing: No; wi-fi: Yes. This entry covers manufacturer code CE956A-RFB. Specifications relate to this exact source record; other editions or packages may differ.
Automatically assembled from the source specifications. This is a factual summary, not a hands-on review.
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Specifications
Manufacturer code: CE956A-RFB. Icecat product 28657472 · Checked 22 Sep 2026. The source lists this code for Great Britain. No specifications are transferred from other editions.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Print technology | Laser |
|---|---|
| Colour printing | Yes |
| Maximum resolution | 600 x 600 DPI |
| Duplex printing | No |
| Black print speed (normal A4/Letter) | 20 ppm |
| Largest ISO paper size | A4 |
| Wi-Fi | Yes |
| Ethernet LAN | Yes |
More product specifications
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Display3 details
| Built-in display | Yes |
|---|---|
| Display | LCD |
| Display number of lines | 2 lines |
Processor, memory & storage3 details
| Memory (RAM) | 128 MB |
|---|---|
| Maximum internal memory | 384 MB |
| Processor frequency | 600 MHz |
Printing, scanning & paper11 details
| Print speed (colour, normal quality, A4/US Letter) | 20 ppm |
|---|---|
| Printing colours | Black, Cyan, Magenta, Yellow |
| Number of print cartridges | 4 |
| Total number of input trays | 2 |
| Total output capacity | 150 sheets |
| Maximum number of input trays | 3 |
| Maximum output capacity | 150 sheets |
| Paper tray media types | Bond paper, Envelopes, Glossy paper, Heavy paper, Labels, Photo paper, Plain paper, Pre-printed, Recycled paper, Transparencies |
| Non-ISO print media sizes | Executive, Legal, Letter |
| Mobile printing technologies | Apple AirPrint, HP ePrint |
| Power consumption (printing) | 425 W |
Connections & wireless3 details
| Standard interfaces | Ethernet, USB 2.0, Wireless LAN |
|---|---|
| Network ready | Yes |
| Wi-Fi standards | 802.11b, 802.11g, Wi-Fi 4 (802.11n) |
Power & battery4 details
| Power consumption (standby) | 15.2 W |
|---|---|
| Power consumption (off) | 0.5 W |
| AC input voltage | 220 - 240 V |
| AC input frequency | 50 - 60 Hz |
Design & dimensions7 details
| Colour | Yes |
|---|---|
| Time to first page (colour, normal) | 17 s |
| Product colour | Grey |
| Width | 405 mm |
| Depth | 454 mm |
| Height | 322 mm |
| Weight | 22.7 kg |
Software & compatibility2 details
| Windows operating systems supported | Yes |
|---|---|
| Mac operating systems supported | Yes |
Further product details12 details
| Time to first page (black, normal) | 17 s |
|---|---|
| Maximum duty cycle | 40000 pages per month |
| Recommended duty cycle | 750 - 2000 pages per month |
| Page description languages | PCL 5c, PCL 6, PostScript 3 |
| Total input capacity | 300 sheets |
| Multi-Purpose tray | Yes |
| Multi-Purpose tray input capacity | 50 sheets |
| Maximum input capacity | 550 sheets |
| ISO A-series sizes (A0...A9) | A4, A5, A6 |
| JIS B-series sizes (B0...B9) | B5 |
| Envelopes sizes | B5, C5, DL |
| Sustainability certificates | ENERGY STAR |
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
