Computers & Office · PRODUCT REVIEW

HP
LaserJet Pro 400 Color M451dw Printer

Wireless color printing with automatic duplex. A closer look at the benefits, the limitations, and the alternatives.

Buyer Shortlists editorial·Updated
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. How our links work. This review uses linked manufacturer documentation. We have not tested this product hands-on.
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THE SHORT ANSWER

Our take

HP identifies product CE958A#BGJ as the LaserJet Pro 400 Color M451dw. This is a color print-only model rated up to 21 pages per minute in black and color, with automatic duplex, USB, Fast Ethernet, and built-in 802.11b/g/n Wi-Fi. Its suffix matters: the M451dw is distinct from the already released M451dn and M451nw variants, which have different connection or duplex combinations. The source packet does not establish a recommended monthly range, so this review focuses on its confirmed interfaces and output workflow rather than projecting workload from speed.

Consider it for

A color office printer needing automatic two-sided pages, Wi-Fi, and Ethernet without multifunction requirements..

Look elsewhere if

Choose another model if copy, scan, fax, a verified monthly recommendation, or a multifunction document feeder is needed.

Pros & cons

What could work for you, and what to consider before buying.

What works in its favor

  • HP maps the exact M451dw to product CE958A#BGJ rather than leaving the suffix ambiguous.
  • Built-in Wi-Fi and Fast Ethernet serve wireless and wired office layouts.
  • Automatic duplex is documented on this color print-only configuration.

What to weigh up

  • It has no copy, scan, or fax functions in the reviewed exact-model materials.
  • The saved packet does not establish a recommended monthly page range.
  • M451 family suffixes differ, so a generic M451 listing does not verify this feature combination.

The key details

Published product specifications
Model coveredM451dw / CE958A#BGJ
Main functionsColor print only
Print outputUp to 21 ppm in black and color
Two-sided printingAutomatic duplex; Wi-Fi, Fast Ethernet, and USB

Performance figures are manufacturer claims. Source checked October 9, 2026. Regional models and included accessories can differ.

What the features mean for you

Confirm the exact M451dw rather than the family name

HP's U.S. page maps the M451dw to CE958A#BGJ. The same family includes M451dn and M451nw models, and their suffixes change which networking or duplex features are documented. A listing that says only M451 can therefore be insufficient for a buyer who requires both Wi-Fi and automatic duplex. Match the full dw designation and product code on the label. The product page describes the model's original capabilities; it does not establish which accessories, toner, or current support accompany an individual used unit.

Color output is paired with a print-only workflow

HP lists black and color printing at up to 21 pages per minute. This can serve office documents where charts or color-coded pages matter, but the M451dw does not add scanning, copying, or fax in the reviewed exact-model materials. Teams that exchange paper originals will need separate equipment for those tasks. A print-only design is a reasonable choice when the office already has a multifunction device or the printer is dedicated to output. Do not confuse the presence of four color toner cartridges with multifunction capability; they describe the print system only.

Automatic duplex and connections fit shared printing

The M451dw combines automatic two-sided printing with built-in 802.11b/g/n Wi-Fi, Fast Ethernet, and USB. The duplex unit can turn sheets for recurring reports, and the network choices let an office select wireless placement or a wired queue. Those options do not mean every port, driver, or wireless security setting will suit a current environment without setup. Check compatibility with the computers and network in use, and confirm the offered machine's interfaces. If only one workstation will print, USB remains available; if a policy requires Ethernet, verify the port on the exact dw unit.

Rated speed does not supply missing volume guidance

HP's source lists a maximum rate of up to 21 pages per minute in both black and color. That helps compare the M451dw with slower office printers, but it is not a recommended number of monthly pages and does not predict a specific file's completion time. The saved packet does not establish a monthly recommended minimum or maximum. Keep the matching profile unknown for those endpoints. If expected volume drives the purchase, ask HP for exact-model guidance or compare machines with a documented recommendation instead of converting speed into a workload claim.

The dw suffix affects purchase matching

A search result may mix M451dn, M451nw, and M451dw listings. The candidate research confirms different suffix-specific combinations, so the exact product code and wireless hardware matter. Use the CE958A#BGJ code as a cross-check and inspect the nameplate rather than assuming that a family photograph depicts the offered machine. The saved source does not verify current price, stock, supplies, or seller condition. A tagged exact-model search helps find matching names, but buyers still need to compare the listing and return terms with the particular configuration they want.

What else to compare

Compare the M451nw if manual duplex is acceptable, or the M451dn only when its different wired configuration meets the connection need.

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Before you buy

Does the M451dw have built-in Wi-Fi?

Yes. HP lists 802.11b/g/n wireless on the exact M451dw product configuration.

Is the M451dw a multifunction printer?

No. The reviewed HP materials describe the M451dw as a color print-only printer.

What monthly volume does HP recommend?

The saved exact-model packet does not establish a recommended monthly page range for the M451dw.

Where can I check the current price?

Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.

Sources & review basis

We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.

Read our research and update process →

The decision

The M451dw combines Wi-Fi, Ethernet, color output, and automatic duplex in a print-only package; exact suffix matching is essential.

Is it the right fit?

Check the exact model and today’s offers on Amazon.

As an Amazon Associate I earn from qualifying purchases.