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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 1513 keyboards in the database...

Most common types

Name
Unique Examples Recorded
% of DB
#20
Model F 4704 Model 300 Expanded Alphameric Keyboard
16
1.058%
#19
Other, Keypad
17
1.124%
#18
Model M4-1 Space Saver TrackPoint II Keyboard
18
1.19%
#17
Model M3-based L40SX/CL57SX Keyboard
21
1.388%
#16
Model F 4704 Model 400 Administrative Keyboard
22
1.454%
#15
Model F 5291 Terminal Keyboard
22
1.454%
#14
Model M Enhanced Keyboard with Speaker
23
1.52%
#13
Model M Enhanced Terminal Keyboard
25
1.652%
#12
TrackPoint-Equipped Compact Keyboard
28
1.851%
#11
AccuType ThinkPad Optical Trackpoint Keyboard
31
2.049%
#10
Model M Type I Functional Key Keyboard
33
2.181%
#9
AccuType ThinkPad TrackPoint Keyboard
38
2.512%
#8
Model M2 Terminal Keyboard
44
2.908%
#7
Model F 122-key Functional Key Keyboard
59
3.9%
#6
AccuType ThinkPad TrackPoint Keyboard
82
5.42%
#5
Model M Enhanced PC Keyboard
97
6.411%
#4
Model M6-1/ThinkPad UltraNav Keyboard
113
7.469%
#3
Model B 3278-type Typewriter Keyboard
143
9.451%
#2
Model M6-1/ThinkPad Pointing Stick Keyboard
185
12.227%
#1
Other, Keyboard
211
13.946%

Most common switches

Switches
Featuring Keyboards
% of DB
#10
Lenovo ThinkPad classic scissor-stabilised rubber domes
32
2.115%
#9
IBM Quiet Touch rubber domes
36
2.379%
#8
IBM ThinkPad scissor-stabilised rubber domes (Alps/NMB variant)
58
3.833%
#7
IBM M3/M4/ThinkPad buckling sleeves (Lexmark variant)
100
6.609%
#6
Lenovo ThinkPad AccuType scissor-stabilised rubber domes
114
7.535%
#5
IBM ThinkPad scissor-stabilised rubber domes (LITE-ON variant)
143
9.451%
#4
IBM beam springs
145
9.584%
#3
IBM capacitive buckling springs
184
12.161%
#2
Other rubber dome implementation
279
18.44%
#1
IBM membrane buckling springs
349
23.067%

Most congested years for launches

Year
Introduced Keyboards
% of DB
#10
1993
58
3.833%
#9
1982
59
3.9%
#8
1986
64
4.23%
#7
1984
64
4.23%
#6
2012
65
4.296%
#5
1998
69
4.56%
#4
1992
69
4.56%
#3
2013
81
5.354%
#2
1979
143
9.451%
#1
1995
156
10.311%

Most common branding

Branding
Featuring Keyboards
% of DB
#10
IBM black square badge
4
0.264%
#9
Lexmark logo
9
0.595%
#8
Unicomp logo on lock lights
32
2.115%
#7
IBM black oval badge
50
3.305%
#6
IBM grey oval badge
94
6.213%
#5
IBM blue oval badge
96
6.345%
#4
New Lenovo logo
172
11.368%
#3
IBM silver square badge
210
13.88%
#2
Old Lenovo logo
254
16.788%
#1
Generic IBM logo
383
25.314%

Most common protocols

Protocol
Supporting Keyboards
% of DB
#5
RS485
25
1.652%
#4
IBM 4704-specific
63
4.164%
#3
Set 3
185
12.227%
#2
HID
336
22.208%
#1
Set 2/AT
416
27.495%

Most common connectors

Connector
Supporting Keyboards
% of DB
#10
POS SDL
21
1.388%
#9
modular 8P8C ("RJ-45")
24
1.586%
#8
DIN (180)
32
2.115%
#7
DA-15
34
2.247%
#6
modular 6P5C ("RJ-25")
44
2.908%
#5
DE-9
66
4.362%
#4
dual PS/2
69
4.56%
#3
DIN (240)
116
7.667%
#2
PS/2
330
21.811%
#1
Type A USB
335
22.141%

Most common built-in pointing devices

Pointing Device
Supporting Keyboards
% of DB
#10
IBM I-Point "Joystick"
1
0.066%
#9
16mm Trackball
1
0.066%
#8
Unicomp Pointing Stick & 25mm Trackball
2
0.132%
#7
Unicomp Pointing Stick
5
0.33%
#6
25mm Trackball
11
0.727%
#5
Synaptics TouchStyk
30
1.983%
#4
Lenovo Optical TrackPoint
31
2.049%
#3
TrackPoint II
51
3.371%
#2
TrackPoint III
62
4.098%
#1
Synaptics TouchStyk & TrackPad UltraNav
113
7.469%

Most common model numbers and feature codes

Model Number
Variants
% of DB
#20
KPD8923
2
0.132%
#19
KU-9880
3
0.198%
#18
3320
3
0.198%
#17
RT3200
9
0.595%
#16
KT-1255
16
1.058%
#15
KPH0035
19
1.256%
#14
SK-8840
20
1.322%
#13
SK-8845CR
30
1.983%
#12
SK-8845
31
2.049%
#11
SK-8845RC
31
2.049%
#10
EBK-209A
31
2.049%
#9
SK-8835
31
2.049%
#8
KB-8923
32
2.115%
#7
SK-8855
32
2.115%
#6
KU-1255
32
2.115%
#5
KC-1957
33
2.181%
#4
KB-3923
37
2.445%
#3
KB-0225
40
2.644%
#2
SK-8825(L)
40
2.644%
#1
SK-8823
49
3.239%