Plenty of sellers call this the Plum 84, but NIZ itself sells its 84-key board as the Mini84, and a close sibling as the Micro84. Either way you get a 75% layout with a full function row and arrow keys in a case about 32cm wide. The switches are NIZ's electro-capacitive design, a slider on a rubber dome over a spring, close in feel to Topre, with MX-style stems so standard Cherry-compatible keycaps fit. NIZ sells it with 35g or 45g domes and includes 10g and 20g springs so you can weight individual keys. It plugs in by USB-C, Bluetooth versions add a NIZ USB receiver, and NIZ's software handles keymaps and macros. The latest Mini84 V6 Pro also comes in an aluminum case.
Versions
NIZ uses Plum as a second brand, so 84-key listings may say Plum 84, Mini 84 or Micro84. The Mini84 is now on its V6 Pro version, in plastic or aluminum cases, and the Micro84 is a separate board with the same 84 keys. Both came as USB-only or Bluetooth, in 35g or 45g. The newer L84 and i84 are different boards and are left off this page.
The Keyboard Company couldn't pair a NIZ board with an older Bluetooth adapter, so the receiver matters. Extra springs added by a previous owner can leave some keys heavier than others.
New to used keyboards? How to check a used keyboard covers chatter, stabilizers, keycap shine and the rest in detail.
Buying guide
We'd buy the white Micro84 EC(S) Bluetooth 35g at $191 delivered from a 100% US seller, the cheapest of the three boards listed from the US. There are at least 11 for sale and most ask $200–290 delivered, with US sellers at $191–230 and Japan dealers, who make up most of the page, at $177–518 once shipping is in. Sellers call these Plum 84, Mini84 or Micro84, and the Mini84 and Micro84 are separate boards with the same 84 keys, so ask for the model from the box or bottom label, the weight (35g or 45g) and whether the NIZ USB receiver comes with a Bluetooth board. The switches are NIZ's electro-capacitive design, close to Topre in feel but with MX-style stems, so ask for a keyboardtester.com video with every key and press keys across the board on arrival, since owners add springs to some. One board is titled Japanese layout, so check for a short space bar if you want US keys, and skip sa218132's listings from a seller at 95.5%, one of them with the same photo as a risingsungaming listing.
$190.64est. delivered
The lowest delivered 84-key NIZ here, a white Micro84 EC(S) Bluetooth 35g at $191 delivered from a 100% US seller. Ask whether the NIZ receiver and cable come with it, and for a typing test video.
NIZ Plum Micro84 EC(S) Wireless Bluetooth Electro-Capacitive Keyboard 35g White
$190.64est. delivered
Under the $200–290 band and from a US seller, so you skip the $35–130 shipping the Japan dealers charge. The card lists it as open box, so ask what's in the box with it.
NIZ Plum Micro84 EC(S) Wireless Bluetooth Electro-Capacitive Keyboard 35g White
$229.99est. delivered
Titled brand new, a Micro84 Bluetooth 45g at $230 delivered from a 100% US seller. The legends are front printed as titled, so look at the photos to be sure you like that, and ask whether the receiver is included.
NIZ MICRO84 EC-BLUETOOTH 45G FRONT PRINT KEYBOARD BRAND NEW
Delivered prices include shipping as eBay quoted it to a US address on Oct 14, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Snapshot
Checked . Some may have sold.
Delivered prices include shipping as eBay quoted it to a US address on Oct 14, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Open box$190.64est. delivered
$179.99 + $10.65 shipping
Buy It Now$179.99
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Good buy
Micro84 EC(S), Bluetooth, 35g, white. US seller.
Seller: benjre74
100% positive
Open box$229.99est. delivered
$219.99 + $10.00 shipping
Buy It Now$219.99
Good buy
Micro84 Bluetooth 45g, front-printed legends, titled brand new.
Seller: wonjun
100% positive
Open box$224.67est. delivered
$214.68 + $9.99 shipping
Buy It Now$214.68
Our take
Micro84 EC(S) 35g in Japanese layout. Photo shows cable, puller and spares.
Seller: pro73
100% positive
Used$266.31est. delivered
$206.31 + $60.00 shipping
Buy It Now$206.31
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Our take
Mini84 EC(S) Bluetooth 35g, US layout, titled tested. $60 shipping from Japan.
Seller: risingsungaming
98.1% positive
Used$286.89est. delivered
$226.89 + $60.00 shipping
Buy It Now$226.89
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Our take
Black 84-key, US layout, titled tested. Same photo as a sa218132 listing.
Seller: risingsungaming
98.1% positive
Used$191.68delivered
$191.68 · free shipping
Buy It Now$191.68
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Check the seller
Micro84 with PBT caps. Seller feedback 95.5%.
Seller: sa218132
95.5% positive
Used$213.59delivered
$213.59 · free shipping
Buy It Now$213.59
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Check the seller
US layout, black and gray. Same photo as a risingsungaming listing, seller at 95.5%.
Seller: sa218132
95.5% positive
Used$517.50est. delivered
$387.50 + $130.00 shipping
Buy It Now$387.50
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Priced high
Mini84, titled good condition. $130 shipping from Japan, about 2.3 times the median.
Seller: samurai-123
98.8% positive
Prices change daily. The live eBay search shows everything listed now, including anything new since Oct 14, 2026.
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