Dell KB1421

Dell KB1421

Model no.	KB1421
Branding	Dell
Manufacturer	Primax Electronics
Layouts	ANSI, ISO
Keyswitches	Rubber dome over membrane
Interface	USB
Precedes	Dell KB212

Dell KB1421 is a basic Dell keyboard included with their OptiPlex line of computers, manufactured by Primax Electronics. It was followed by the Dell KB212, of which one variant was also manufactured by Primax.

Description

The keycaps are low-profile, and the keys are reduced travel. The force curve is sharp and smooth with positive action — the feel is a significant improvement over the previous models with the protruding space bars.

The membrane sheets are joined together using a heat stamp. The membranes are backed by a thin, flexible sheet of metal.

The PCB is labelled "DELL Totoro" with "P/N: 654000011590"; the upper case has Totoro spelt as "TOTOR/U" but typically the spelling "Totoro" is found, on both the mouldings and the membranes. The PCB manufacturer is Xinhua Electronics (Huizhou) Co., Ltd. (per the UL File Number of E241103). The membranes are marked "Lumirror" and "E107536", the latter giving Shinkong Synthetic Fibers Corp as the manufacturer.

Anecdotal evidence suggests that the keycap printing has lower durability than average, being the only modern Dell keyboard that seems to be prone to legend abrasion.

Models

Models include:

Part number	Model
0M372H	US ANSI, black
0M377H	UK ISO, black

Gallery

0M372H

US English, ANSI, black, made in January 2010.

• 
  Top
• 
  Bottom
• 
  Rear labels
• 
  USB plug

0M377H

UK English, ISO, black.

Exterior

Rear label and internal details were not recorded for this keyboard.

• 
  Top
• 
  Side, showing low-profile keycaps
• 
  Right-hand side, showing miniature LEDs
• 
  Stabilised keys, and domes
• 
  Lubricated stabiliser track

Interior

The following example was manufactured in April 2010. The top of the keyboard is not presentable, and a large number of keys have been stripped of their legends.

• 
  Upper rear label from Primax, giving the UL File Number
• 
  Lower rear label from Dell, giving the Dell part number and date of manufacture
• 
  Keycaps
• 
  Internal components, including the metal backplate below the membranes
• 
  Controller PCB, top
• 
  Controller PCB, bottom
• 
  Joined membranes
• 
  Membrane markings

See also

• Dell SK-8175, the Silitek-made version
• Dell L30U, the Darfon-made version