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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 1493 keyboards in the database...

Most common typesMost common switchesMost congested dates for launchesMost common brandingMost common protocolsMost common connectorsMost common built-in pointing devicesMost common model numbers and feature codes

Most common types

Name
Unique Examples Recorded
% of DB
#20
Model M4-1 Space Saver TrackPoint II Keyboard
16
1.072%
#19
Model F300 Expanded Alphameric Keyboard
16
1.072%
#18
Model M Type III Functional Key Keyboard
20
1.34%
#17
Model M Enhanced Keyboard with Speaker
21
1.407%
#16
Model M3 L40SX Keyboard
21
1.407%
#15
Model F400 Administrative Keyboard
22
1.474%
#14
Model F Terminal Keyboard
22
1.474%
#13
Model M Enhanced Terminal Keyboard
25
1.674%
#12
TrackPoint-Equipped Compact Keyboard
28
1.875%
#11
AccuType ThinkPad Optical Trackpoint Keyboard
31
2.076%
#10
Model M Type I Functional Key Keyboard
32
2.143%
#9
AccuType ThinkPad TrackPoint Keyboard
38
2.545%
#8
Model M2 Terminal Keyboard
44
2.947%
#7
Model F Functional Key Keyboard
59
3.952%
#6
AccuType ThinkPad TrackPoint Keyboard
82
5.492%
#5
Model M Enhanced PC Keyboard
96
6.43%
#4
Model M6-1/ThinkPad UltraNav Keyboard
113
7.569%
#3
Model B 3278-type Typewriter Keyboard
143
9.578%
#2
Model M6-1/ThinkPad TrackPoint Keyboard
184
12.324%
#1
Other, Keyboard
211
14.133%

Most common switches

Switches
Featuring Keyboards
% of DB
#10
IBM Quiet Touch rubber domes
32
2.143%
#9
Lenovo ThinkPad classic scissor-stabilised rubber domes
32
2.143%
#8
IBM ThinkPad scissor-stabilised rubber domes (Alps/NMB variant)
58
3.885%
#7
IBM M3/M4/ThinkPad buckling sleeves (Lexmark variant)
97
6.497%
#6
Lenovo ThinkPad AccuType scissor-stabilised rubber domes
114
7.636%
#5
IBM ThinkPad scissor-stabilised rubber domes (LITE-ON variant)
143
9.578%
#4
IBM beam springs
145
9.712%
#3
IBM capacitive buckling springs
185
12.391%
#2
Other rubber dome implementation
277
18.553%
#1
IBM membrane buckling springs
338
22.639%

Most congested years for launches

Year
Introduced Keyboards
% of DB
#10
2016
52
3.483%
#9
1982
59
3.952%
#8
1986
63
4.22%
#7
2012
64
4.287%
#6
1984
65
4.354%
#5
1998
69
4.622%
#4
2013
81
5.425%
#3
1992
99
6.631%
#2
1979
143
9.578%
#1
1995
155
10.382%

Most common branding

Branding
Featuring Keyboards
% of DB
#10
IBM black square badge
3
0.201%
#9
Lexmark logo
9
0.603%
#8
Unicomp logo on lock lights
29
1.942%
#7
IBM black oval badge
50
3.349%
#6
IBM grey oval badge
90
6.028%
#5
IBM blue oval badge
93
6.229%
#4
New Lenovo logo
172
11.52%
#3
IBM silver square badge
207
13.865%
#2
Old Lenovo logo
254
17.013%
#1
Generic IBM logo
381
25.519%

Most common protocols

Protocol
Supporting Keyboards
% of DB
#5
RS485
25
1.674%
#4
IBM 4704-specific
63
4.22%
#3
Set 3
183
12.257%
#2
HID
334
22.371%
#1
Set 2/AT
405
27.127%

Most common connectors

Connector
Supporting Keyboards
% of DB
#10
POS SDL
22
1.474%
#9
DIN (180)
31
2.076%
#8
modular 8P5C ("RJ-45")
33
2.21%
#7
DA-15
34
2.277%
#6
modular 8P5C ("RJ-25")
44
2.947%
#5
dual PS/2
64
4.287%
#4
DE-9
66
4.421%
#3
DIN (240)
117
7.837%
#2
PS/2
324
21.701%
#1
Type A USB
334
22.371%

Most common built-in pointing devices

Pointing Device
Supporting Keyboards
% of DB
#10
Unicomp Pointing Stick & 25mm Trackball
1
0.067%
#9
IBM I-Point "Joystick"
1
0.067%
#8
16mm Trackball
1
0.067%
#7
Unicomp Pointing Stick
5
0.335%
#6
25mm Trackball
9
0.603%
#5
Synaptics TouchStyk
30
2.009%
#4
Lenovo Optical TrackPoint
31
2.076%
#3
TrackPoint II
49
3.282%
#2
TrackPoint III
61
4.086%
#1
Synaptics TouchStyk & TrackPad UltraNav
113
7.569%

Most common model numbers and feature codes

Model Number
Variants
% of DB
#20
001
2
0.134%
#19
KU-9880
3
0.201%
#18
3320
3
0.201%
#17
RT3200
9
0.603%
#16
KT-1255
16
1.072%
#15
KPH0035
19
1.273%
#14
SK-8840
20
1.34%
#13
SK-8845CR
30
2.009%
#12
SK-8835
31
2.076%
#11
SK-8845RC
31
2.076%
#10
SK-8845
31
2.076%
#9
EBK-209A
31
2.076%
#8
KB-8923
32
2.143%
#7
SK-8855
32
2.143%
#6
KU-1255
32
2.143%
#5
KC-1957
33
2.21%
#4
KB-3923
37
2.478%
#3
SK-8825(L)
40
2.679%
#2
KB-0225
40
2.679%
#1
SK-8823
49
3.282%

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