Editing Topre Realforce (section)

===Realforce JIS – 89, 89U, 91, 91U===
The 89, 89U, 91 and 91U are the Japanese versions of the Realforce tenkeyless keyboard. The 89 is unique among the tenkeyless Realforce models in that it is the only keyboard that comes in uniform 30 grams weighting. The 89 and 89U are also the only tenkeyless models that don’t have any Windows keys. The 89 and 91 are the only variants that have models with PS/2 connectors. The 91U also has the distinction of being the only tenkeyless Realforce variant with a [[blank key|blank]] model. A limited edition 89 (Model ND31BS) was used for the 10th anniversary of Realforce in Japan, although it was actually released in 2012, about 6 months after the 87U 10th anniversary keyboards.