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Keyboard Database Stats

These are just some of the interesting stats we can derive from the keyboard database. Just note that since I'm constantly adding to and improving the database, these stats can change over time.

Out of a total of 1710 keyboards in the database...

  • 199 are members of the Model F family, which constitutes about 11.637% of the database
  • 527 are members of the Model M family, which constitutes about 30.819% of the database
  • 269 are members of the Model M6/ThinkPad family, which constitutes about 15.731% of the database
  • 715 are various other keyboards, which constitutes about 41.813% of the database

Most common types

Name
Unique Examples Recorded
% of DB
#20
Model F 5291 Terminal Keyboard
23
1.345%
#19
TrackPoint-Equipped Compact Keyboard
28
1.637%
#18
ThinkPad-style Discrete Keyboard
30
1.754%
#17
AccuType ThinkPad Optical Trackpoint Keyboard
31
1.813%
#16
ThinkPad-style Discrete Full-Size UltraNav Keyboard
31
1.813%
#15
Classic ThinkPad Discrete Keyboard
32
1.871%
#14
Model M Enhanced Terminal Keyboard
33
1.93%
#13
Model M Type I Functional Key Keyboard
34
1.988%
#12
AccuType ThinkPad TrackPoint Keyboard
38
2.222%
#11
Model M Type IV PC Functional Key Keyboard
41
2.398%
#10
Model M6 ThinkPad Keyboard Assembly
42
2.456%
#9
Model M2 Terminal Keyboard
44
2.573%
#8
Model F 122-key Functional Key Keyboard
71
4.152%
#7
Classic ThinkPad Keyboard Assembly
79
4.62%
#6
AccuType ThinkPad TrackPoint Keyboard
82
4.795%
#5
ThinkPad-style Discrete UltraNav Keyboard
84
4.912%
#4
Model M Enhanced PC Keyboard
113
6.608%
#3
Model M6-1 ThinkPad Keyboard Assembly
114
6.667%
#2
Model B 3278-type Typewriter Keyboard
143
8.363%
#1
Other, Keyboard
212
12.398%

Most common switches

Switches
Featuring Keyboards
% of DB
#10
IBM Quiet Touch rubber domes
39
2.281%
#9
IBM ThinkPad scissor-stabilised rubber domes (Alps/NMB variant)
58
3.392%
#8
IBM buckling rubber sleeves (M3/M4 variant)
62
3.626%
#7
Lenovo ThinkPad AccuType scissor-stabilised rubber domes
114
6.667%
#6
IBM ThinkPad scissor-stabilised rubber domes (LITE-ON variant)
145
8.48%
#5
IBM beam springs
145
8.48%
#4
IBM buckling rubber sleeves (M6 variant)
156
9.123%
#3
IBM capacitive buckling springs
199
11.637%
#2
Other rubber dome implementation
280
16.374%
#1
IBM membrane buckling springs
404
23.626%

Most congested years for launches

Year
Introduced Keyboards
% of DB
#10
1996
65
3.801%
#9
1991
66
3.86%
#8
1984
69
4.035%
#7
1998
71
4.152%
#6
1986
76
4.444%
#5
2013
80
4.678%
#4
1992
95
5.556%
#3
1993
99
5.789%
#2
1979
143
8.363%
#1
1995
159
9.298%

Most common branding

Branding
Featuring Keyboards
% of DB
#10
IBM black square badge
4
0.234%
#9
Lexmark logo
10
0.585%
#8
Unicomp logo on lock lights
35
2.047%
#7
IBM black oval badge
51
2.982%
#6
IBM blue oval badge
104
6.082%
#5
IBM grey oval badge
128
7.485%
#4
New Lenovo logo
172
10.058%
#3
IBM silver square badge
230
13.45%
#2
Old Lenovo logo
255
14.912%
#1
Generic IBM logo
385
22.515%

Most common protocols

Protocol
Supporting Keyboards
% of DB
#5
RS485
25
1.462%
#4
IBM 4704-specific
63
3.684%
#3
Set 3
209
12.222%
#2
HID
340
19.883%
#1
Set 2/AT
431
25.205%

Most common connectors

Connector
Supporting Keyboards
% of DB
#10
modular 8P8C ("RJ-45")
22
1.287%
#9
PS/2-like combined keypad/mouse
22
1.287%
#8
DA-15
35
2.047%
#7
DIN (180)
35
2.047%
#6
modular 6P5C ("RJ-25")
44
2.573%
#5
DE-9
68
3.977%
#4
dual PS/2
70
4.094%
#3
DIN (240)
130
7.602%
#2
Type A USB
338
19.766%
#1
PS/2
360
21.053%

Most common built-in pointing devices

Pointing Device
Supporting Keyboards
% of DB
#10
POS pointer
2
0.117%
#9
Unicomp Pointing Stick & 25mm Trackball
2
0.117%
#8
IBM I-Point "Joystick"
2
0.117%
#7
Unicomp Pointing Stick
5
0.292%
#6
25mm Trackball
11
0.643%
#5
Synaptics TouchStyk
30
1.754%
#4
Lenovo Optical TrackPoint
31
1.813%
#3
TrackPoint III
110
6.433%
#2
Synaptics TouchStyk & TrackPad UltraNav
115
6.725%
#1
TrackPoint II
116
6.784%

Most common model numbers and feature codes

Model Number
Variants
% of DB
#20
3323
2
0.117%
#19
E57888
2
0.117%
#18
KU-9880
3
0.175%
#17
3320
3
0.175%
#16
RT3200
9
0.526%
#15
KT-1255
16
0.936%
#14
KPH0035
19
1.111%
#13
SK-8840
20
1.17%
#12
SK-8845CR
30
1.754%
#11
SK-8835
31
1.813%
#10
EBK-209A
31
1.813%
#9
KB-8923
32
1.871%
#8
SK-8855
32
1.871%
#7
KU-1255
32
1.871%
#6
KC-1957
33
1.93%
#5
KB-3923
37
2.164%
#4
KB-0225
40
2.339%
#3
SK-8825(L)
40
2.339%
#2
SK-8823
49
2.865%
#1
SK-8845RC
62
3.626%