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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 1260 keyboards in the database...

Most common types

Name
Unique Examples Recorded
% of DB
#20
Model M Ultra Keyboard
13
1.032%
#19
Model M4-1 Space Saver TrackPoint II Keyboard
16
1.27%
#18
Model F300 Expanded Alphameric Keyboard
16
1.27%
#17
Model F200 Alphameric Keyboard
16
1.27%
#16
Model M Industrial Space Saving Keyboard
16
1.27%
#15
Model M Type III Functional Key Keyboard
18
1.429%
#14
Model M Type I Functional Key Keyboard
19
1.508%
#13
Model M3 L40SX Keyboard
21
1.667%
#12
Model M Enhanced Keyboard with Speaker
21
1.667%
#11
Model F400 Administrative Keyboard
22
1.746%
#10
Model F Terminal Keyboard
22
1.746%
#9
AccuType ThinkPad Optical Trackpoint Keyboard
31
2.46%
#8
AccuType ThinkPad TrackPoint Keyboard
38
3.016%
#7
Model M2 Terminal Keyboard
44
3.492%
#6
Model F Functional Key Keyboard
58
4.603%
#5
AccuType ThinkPad TrackPoint Keyboard
82
6.508%
#4
Model M Enhanced PC Keyboard
86
6.825%
#3
Model M6-1/ThinkPad UltraNav Keyboard
113
8.968%
#2
Model M6-1/ThinkPad TrackPoint Keyboard
183
14.524%
#1
Other, Keyboard
203
16.111%

Most common switches

Switches
Featuring Keyboards
% of DB
#10
IBM ThinkPad buckling sleeves (Key Tronic variant)
21
1.667%
#9
IBM Quiet Touch rubber domes
31
2.46%
#8
Lenovo ThinkPad classic scissor-stabilised rubber domes
32
2.54%
#7
IBM ThinkPad scissor-stabilised rubber domes (Alps/NMB variant)
58
4.603%
#6
IBM M3/M4/ThinkPad buckling sleeves (Lexmark variant)
97
7.698%
#5
Lenovo ThinkPad AccuType scissor-stabilised rubber domes
114
9.048%
#4
IBM ThinkPad scissor-stabilised rubber domes (LITE-ON variant)
142
11.27%
#3
IBM capacitive buckling springs
184
14.603%
#2
Other rubber dome implementation
257
20.397%
#1
IBM membrane buckling springs
284
22.54%

Most congested years for launches

Year
Introduced Keyboards
% of DB
#10
2005
43
3.413%
#9
2003
50
3.968%
#8
2016
52
4.127%
#7
1984
60
4.762%
#6
2012
64
5.079%
#5
1998
70
5.556%
#4
2013
80
6.349%
#3
1982
81
6.429%
#2
1992
98
7.778%
#1
1995
153
12.143%

Most common branding

Branding
Featuring Keyboards
% of DB
#10
IBM black square badge
3
0.238%
#9
Lexmark logo
9
0.714%
#8
Unicomp logo on lock lights
24
1.905%
#7
IBM black oval badge
49
3.889%
#6
IBM blue oval badge
81
6.429%
#5
IBM grey oval badge
83
6.587%
#4
New Lenovo logo
172
13.651%
#3
IBM silver square badge
184
14.603%
#2
Old Lenovo logo
254
20.159%
#1
Generic IBM logo
354
28.095%

Most common protocols

Protocol
Supporting Keyboards
% of DB
#5
RS485
24
1.905%
#4
IBM 4704-specific
63
5%
#3
Set 3
158
12.54%
#2
HID
306
24.286%
#1
Set 2/AT
395
31.349%

Most common connectors

Connector
Supporting Keyboards
% of DB
#10
POS SDL
24
1.905%
#9
modular 8P5C ("RJ-45")
28
2.222%
#8
DIN (180)
30
2.381%
#7
DA-15
32
2.54%
#6
modular 8P5C ("RJ-25")
51
4.048%
#5
dual PS/2
63
5%
#4
DE-9
65
5.159%
#3
DIN (240)
97
7.698%
#2
Type A USB
306
24.286%
#1
PS/2
314
24.921%

Most common built-in pointing devices

Pointing Device
Supporting Keyboards
% of DB
#10
Unicomp Pointing Stick & 25mm Trackball
1
0.079%
#9
IBM I-Point "Joystick"
1
0.079%
#8
16mm Trackball
1
0.079%
#7
Unicomp Pointing Stick
5
0.397%
#6
25mm Trackball
7
0.556%
#5
Synaptics TouchStyk
29
2.302%
#4
Lenovo Optical TrackPoint
31
2.46%
#3
TrackPoint II
49
3.889%
#2
TrackPoint III
61
4.841%
#1
Synaptics TouchStyk & TrackPad UltraNav
113
8.968%

Most common model numbers and feature codes

Model Number
Variants
% of DB
#20
7257
2
0.159%
#19
6300
2
0.159%
#18
KU-9880
3
0.238%
#17
3320
3
0.238%
#16
RT3200
9
0.714%
#15
KT-1255
16
1.27%
#14
SK-8840
20
1.587%
#13
SK-8845CR
29
2.302%
#12
SK-8835
31
2.46%
#11
EBK-209A
31
2.46%
#10
SK-8845RC
31
2.46%
#9
SK-8845
31
2.46%
#8
KB-8923
32
2.54%
#7
SK-8855
32
2.54%
#6
KU-1255
32
2.54%
#5
KC-1957
33
2.619%
#4
KB-3923
37
2.937%
#3
SK-8825(L)
40
3.175%
#2
KB-0225
40
3.175%
#1
SK-8823
49
3.889%