Tai-Hao F21-7D

Tai-Hao F21-7D

Manufacturer	Tai-Hao
Layouts	Asian 101, semi-ISO
Keyswitches	Tai-Hao APC series Alps SKBM White
Interface	USB
Weight	1250 g (with cable)
Supersedes	Tai-Hao F21HQ
Website	www.tai-hao.com/catalog/ins.php?index id=63

F21-7D is a model of keyboard from Tai-Hao that typically uses Tai-Hao APC series switches. This model is targeted towards gamers, and features optional high-grip rubber keys on the WASD and cursor keys (typically orange, but also found in red).

Description

F21-7D is derived from model F21HQ, itself derived from Tai-Hao TH-5539-8 (AKA model APC-8).<ref name="TH-C1" /> The specification differs between OEM customers; features advertised include 18-key rollover (found to be 8KRO during testing) and programmability. The keycaps are black with laser printing.

In most cases, the layout is Asian 101; however, the AZiO Levetron Clicker has an ISO enter key, although the layout itself is not ISO (left shift is full size and the keyboard only has 104 keys).<ref name="CustomPC-KB528U" />

The keyboard is cited (albeit not by Tai-Hao themselves) to have "fully programmable keys" and "10 profiles" but this is not well-documented.<ref name="Rosewill-RK6000" /><ref name="Clicker-F21-7D" />

The keyboard controller is a glop-top chip-on-board IC on a small PCB, very similar to that used in modern membrane keyboards.

Variants

Multiple companies have sold this keyboard under their own brands. Tai-Hao also sell the keyboard under their own Clicker brand.

Brand/model	Switches	Notes
Clicker F21-7D	APC BSW 055WH depicted
AZiO Levetron Clicker (KB528U)	APC BSW 070WH (per the box)	This is advertised as 18KRO, but was found to be 8KRO during testing. The rubber WASD and arrow keys are non-optional with this variant. The only depiction of the switches shows them to be Alps SKBM White instead of Tai-Hao APC series.<ref name="CustomPC-KB528U" />
Rosewill Striker RK-6000	Likely APC BSW 055WH<ref name="Rosewill-RK6000" />
Wintek WK750	APC BSW 055WH

Gallery

Wintek WK750

Unbranded version reportedly sold by Wintek, marked as model WK750, and manufactured in 2011. The switches are indicated as APC BSW 055WH on the box, and appear to be the older teal colour (although some photos are closer to sky blue).

• 
  Top
• 
  Bottom
• 
  Box, top
• 
  Box, bottom, with size, weight and switch specifications
• 
  Top, showing switches
• 
  APC BSW 055WH switches
• 
  Internals
• 
  Bottom view of internals
• 
  Markings on the switch PCB
• 
  Controller daughterboard
• 
  Daughterboard connector
• 
  Bottom of the daughterboard
• 
  APC BSW 055WH switch disassembly

External links

• KBtalKing — ★★Wintek-WK-750類ALPS軸(藍軸)★★

References

<references> <ref name="Rosewill-RK6000">Rosewill — Rosewill STRIKER RK-6000 - Mechanical Keyboard - Programmable Keys, Anti-Ghosting Features, and 10 Profiles</ref> <ref name="CustomPC-KB528U">Custom PC Review — AZiO Levetron Clicker Mechanical Gaming Keyboard Review</ref> <ref name="Clicker-F21-7D">MechanicalKeyboards.com — Tai-Hao F21-7D Mechanical Keyboard (Hybrid (mech / membrane))</ref> <ref name="TH-C1">Correspondence with Tai-Hao, 2017-09-07</ref> </references>