Dell monitors have names such as "U2312f" or "E2318H".

The model number is made up of (at least) four elements:

  1. Category (1 character):
    E (Economy) / T (Touch) / P (Professional) / S (Studio) / U (Ultrasharp)
  2. Diagonal length in inches (including the bezel if I'm not mistaken)
  3. A two-digit number
  4. Potential combination of several extra letters - upper or lowercase, e.g. H, M, t, f.

Can someone explain the rest of the naming scheme (components 3 and 4)?

  • 3rd is likely a model differentiator to prevent names with too much in common or model versions, and the 4th are usually feature differentiators indicating specific feature sets. – music2myear Nov 28 '17 at 20:12
  • @music2myear: But what's the differentiation about, and what are the features? – einpoklum Nov 28 '17 at 20:25
  • The best source for this would probably be Dell customer service or sales support. Companies are usually happy to provide information to customers, especially if it might improve odds of a sale. It might even be in a faq area on their web site. On Super User, though, it would be random chance that anyone would happen to know. It's attracted a close vote as off-topic, and the question is sort of at the edge of topicality. – fixer1234 Nov 28 '17 at 20:35
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    4. H - 16:9 aspect ratio, M - 16.7m colour depth, W - Ultrawide, K - 4K/8K – DavidPostill Nov 28 '17 at 20:56
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    See en.wikipedia.org/wiki/Dell_monitors for more clues ... – DavidPostill Nov 28 '17 at 20:56

Since around 2010 the convention has been:

[Series][Diagonal][Year][Aspect Ratio / Resolution Code]

  1. Series
    • E - Essential. Usually TN anti-glare panel, internal power, simple base, 3-year warranty.
    • P - Professional. Usually IPS anti-glare panel, internal power, height/rotate base, 3-year warranty.
    • S - Home (aka Entertainment & Gaming). TN or IPS panel, external power, slim base, 1-year warranty.
    • U - UltraSharp. IPS anti-glare panel, internal power, height/rotate base, 3-year warranty.
    • UP - UltraSharp with PremierColor. Additional colour gamut.
    • AW - Alienware. High-end gaming.
  2. Diagonal
    • Two digit diagonal viewable size rounded to the nearest inch.
  3. Year
    • Two digit year it was released.
  4. Aspect Ratio / Resolution Code - the first letter after the digits is most commonly the aspect ratio or QHD/UHD resolution
    • S - standard ratio (4:3 or 5:4),
    • no letter - computer widescreen (16:10)
    • H - HD widescreen (16:9)
    • W - Ultrawide (21:9)
    • D - QHD (1440p)
    • Q - 4K UHD (2160p)
    • K - 8K UHD (4320p)
    • T - Touch
    • M - No HDMI (S/U-series only)
    • L - With HDMI (only used when the same model without HDMI exists)
    • N - With VGA (only used when the same model without VGA exists)
  • I own two U2412Ms - any idea what the M stands for? – flolilolilo Nov 28 '17 at 21:29
  • @einpoklum I'm trying to stick to current monitors. The convention has continually changed. – Jason Nov 28 '17 at 21:56
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    @Jason so Dell is as consistent in naming their products as I am consistent in naming my scripts' $variables :D – flolilolilo Nov 28 '17 at 23:43
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    @flolilolilo I finally figured it out and updated my answer. – Jason Nov 29 '17 at 16:54
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    > M - No HDMI (S/U-series only) But this model, S2719DM has dual HDMI ports. – user900519 May 1 at 9:38

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