Product comparison · 2 laser printers

HP LaserJet M451dn Colour vs HP Pro 300 M351a

52specifications compared
17differ
35identical
29known for one product only

Key differences

Print speed (black, normal quality, A4/US Letter)
- LaserJet M451dn Colour:21 ppm
- Pro 300 M351a:18 ppm
Maximum duty cycle
- LaserJet M451dn Colour:40000 pages per month
- Pro 300 M351a:30000 pages per month
Recommended duty cycle
- LaserJet M451dn Colour:2000
- Pro 300 M351a:1500
Non-ISO print media sizes
- LaserJet M451dn Colour:Executive, Legal, Letter
- Pro 300 M351a:Letter
Custom media width
- LaserJet M451dn Colour:76 - 126 mm
- Pro 300 M351a:76 - 127 mm
Standard interfaces
- LaserJet M451dn Colour:Ethernet, USB 2.0
- Pro 300 M351a:USB 2.0
Ethernet LAN
- LaserJet M451dn Colour:Yes
- Pro 300 M351a:No
Network ready
- LaserJet M451dn Colour:Yes
- Pro 300 M351a:No

Side by side

Differences highlightedShow differences only

Comparison of M451dn, Pro 300 M351a
81 specifications	A HP LaserJet M451dn Colour Model M451dn View product	B HP Pro 300 M351a View product
Printing1 differ
Print speed (black, normal quality, A4/US Letter)Differs	21 ppm	18 ppm
Duplex printingKnown for one	Yes	Unknown — not stated by the source
Print speed (colour, normal quality, A4/US Letter)Known for one	21 ppm	Unknown — not stated by the source
Features2 differ
Maximum duty cycleDiffers	40000 pages per month	30000 pages per month
Recommended duty cycleDiffers	2000	1500
Number of print cartridgesKnown for one	4	Unknown — not stated by the source
Input & output capacityidentical
Maximum output capacityKnown for one	Unknown — not stated by the source	150 sheets
Maximum input capacityKnown for one	550 sheets	Unknown — not stated by the source
Paper handling3 differ
Paper tray media typesDiffers	Bond paper, Card stock, Envelopes, Glossy paper, Labels, Plain paper, Pre-printed, Recycled paper, Transparencies	Bond paper, Card stock, Envelopes, Glossy paper, Labels, Matte paper, Photo paper, Plain paper, Recycled paper, Transparencies
ISO B-series sizes (B0...B9)Known for one	Unknown — not stated by the source	B5, B6
ISO C-series sizes (C0...C9)Known for one	Unknown — not stated by the source	C5, C6
Non-ISO print media sizesDiffers	Executive, Legal, Letter	Letter
JIS B-series sizes (B0...B9)Known for one	Unknown — not stated by the source	B5, B6
Envelopes sizesKnown for one	Unknown — not stated by the source	C5, C6, DL
Borderless printing media sizesKnown for one	Unknown — not stated by the source	Legal, Letter
Custom media widthDiffers	76 - 126 mm	76 - 127 mm
Paper tray media weightKnown for one	Unknown — not stated by the source	60 - 220 g/m²
Multi-purpose tray media typesKnown for one	Bond paper, Envelopes, Labels, Letterhead, Plain paper, Recycled paper, Transparencies	Unknown — not stated by the source
Ports & interfaces1 differ
Standard interfacesDiffers	Ethernet, USB 2.0	USB 2.0
Network2 differ
Ethernet LANDiffers	Yes	No
Network readyDiffers	Yes	No
Wi-Fi standardsKnown for one	Unknown — not stated by the source	Not supported
Performanceidentical
Compatible memory cardsKnown for one	Unknown — not stated by the source	Not supported
Built-in processorKnown for one	Unknown — not stated by the source	Yes
Processor modelKnown for one	Unknown — not stated by the source	1
Sound pressure level (printing)Known for one	Unknown — not stated by the source	51 dB
Design1 differ
Product colourDiffers	Black, White	Black, Grey
CertificationKnown for one	Unknown — not stated by the source	CISPR 22: 2005+A1/EN 55022: 2006+A1 B, EN 61000-3-2: 2006, EN 61000-3-3: 2008, EN 55024: 1998+A1+A2, FCC 47 CFR, B9254-2008, EMC 2004/108/EC w/ CE, IEC 60950-1, EN 60950-1+A11 (EU), IEC 60825-1, GS, EN 60825-1
Power2 differ
Power consumption (printing)Differs	425 W	410 W
Power consumption (standby)Known for one	Unknown — not stated by the source	3 W
Power consumption (PowerSave)Differs	15.2 W	15.7 W
AC input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
AC input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
System requirements2 differ
Server operating systems supportedDiffers	Windows Server 2003, Windows Server 2003 x64, Windows Server 2008	Windows Server 2003, Windows Server 2008
Minimum processorDiffers	1GHz	1 GHz
Operational conditions1 differ
Operating temperature (T-T)Differs	59 - 86 °F	15 - 30 °C
Storage relative humidity (H-H)Known for one	20 - 70%	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR
Weight & dimensions2 differ
WeightDiffers	23.6 kg	22.7 kg
Dimensions (WxDxH)Differs	405 x 484 x 322 mm	405 x 454 x 322 mm
Packaging dataidentical
Package weightKnown for one	Unknown — not stated by the source	27 kg
Other featuresidentical
DVD/CD printingKnown for one	Unknown — not stated by the source	No
Internal modemKnown for one	Unknown — not stated by the source	No
LegalKnown for one	Unknown — not stated by the source	Yes
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u	Unknown — not stated by the source
Networking featuresKnown for one	Fast Ethernet	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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