Ducky made the One 2 SF for One 2 Mini owners who missed their arrow keys. SF stands for Sixty-Five, and the board adds a proper arrow cluster plus Delete, Page Up and Page Down down the right edge, in a case only a little wider than the Mini. Everything else is classic One 2. You get Cherry MX switches soldered to the board, doubleshot PBT caps, per-key RGB, and macros recorded right on the keyboard with no software. RTINGS liked that the keys don't feel cramped despite the small size, and gave the typing quality top marks. A detachable USB-C cable plugs into the back. Since the switches are soldered, the switch in the listing is the switch you'll live with, so pick a Brown, Red, Blue or Kailh BOX board on purpose. It's a sensible pick if you want a small Ducky that still handles text editing.
Model DKON1967ST, sold in US ANSI and European ISO versions. It's a 65% layout, so you get arrow keys plus a short column of Delete, Page Up and Page Down on the right, which the 60% One 2 Mini lacks. The Pure White edition is the same board in white. Retailers listed Cherry MX Red, Brown, Blue, Black, Silent Red, Silent Black and Speed Silver, Kailh BOX, and Kailh Polia switches. The One 3 SF that followed is hot-swap, and this one is soldered.
What to check
Switches are soldered, so a chattering key means a repair. Missing caps in the arrow cluster and right-hand column are easy to overlook in photos.
01Switch: Ask the seller to pull a keycap and photograph the switch. It should match the switch named in the title.
02Right column: Check in the photos that Delete, Page Up, Page Down and the arrow caps are all present. They're the first caps to go missing on a 65% board.
03Chatter: Ask for a typing test video at keyboardtester.com or similar. Every key should register once per press.
04Space bar: Ask for a video tapping the space bar at each end and the right Shift. They should go down level without rattle.
05Keycap shine: Look at the space bar and WASD in the photos. Doubleshot PBT should be matte, so shiny caps mean hard use or replacements.
New to used keyboards? How to check a used keyboard covers chatter, stabilizers, keycap shine and the rest in detail.
Buying guide
Which one to buy
§ Oct 14, 2026
We'd buy the refurbished PowerColor x Ducky SF with Kailh Brown switches at $50 with free shipping from a 99.6% seller, under the $70 median. There are at least 32 for sale, nearly all used boards from US sellers asking $55–110 delivered, while Japan dealers ask $173–235. The switches are soldered, so pick the switch you want and ask for a keyboardtester.com video, since a chattering key is a repair, and ask how a board titled with a non-stock switch like Kailh Cream was fitted. Check the photos for the arrow keys and the Delete, Page Up and Page Down caps down the right side, the first caps to go missing on a 65% board. Skip the new boxed board from Japan at $235 delivered, over three times the median.
Listed now
32
For parts
0
Typical ask
$55–$110
Full range
$22–$205
★Cheapest
$29.09est. delivered
The lowest delivered complete SF at $29, a blue board titled English QWERTY from a 100% seller. It names no switch and isn't titled tested, so ask which switch it has and for a typing test video.
Ducky One 2 SF Compact Mechanical Keyboard Blue English QWERTY Layout
A refurbished PowerColor x Ducky SF with Kailh Brown switches at $50 with free shipping from a 99.6% seller, under the $70 median. Refurbished is eBay's condition, so ask what was done and for a typing test video.
PowerColor USB-C x Ducky One 2 SF Mechanical Keyboard with Kailh Brown Switches
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
For sale on eBay
8 of 32 listed
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.
Used
★Cheapest
Ducky One 2 SF Compact Mechanical Keyboard Blue English QWERTY Layout
$29.09est. delivered
$22.00 + $7.09 shipping
Buy It Now$22.00
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Good buy
Blue board, titled English QWERTY. No switch named.