IBM

IBM Model M 1391401 Spring Buckling Mechanical Keyboard No Cable

Bottom line: The IBM Model M 1391401 Spring Buckling Mechanical Keyboard No Cable is a specs-and-price decision rather than a crowd-consensus one in the keyboards & mice category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-08-13

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Before you buy

Check the listed dimensions, connectors and platform compatibility against your setup before ordering
Used and vintage listings vary by seller and condition — check the listing photos, description and return terms before buying

Manufacturer description

Vintage IBM 1391401 Wired Mechanical Full-size Keyboard Acclaimed classic buckling-spring key design and uniform profile, swappable key caps. All keys seems to work good with a click It is assumed it works, but we cannot guarantee their function or condition other than to assert all keys click properly and have all key caps. Please be aware there may be dirt or debris under the keys in the bed we couldn't clean without disassembly. I do not have 6 pin SDL to 6 pin PS/2 cables cables for these keyboards, so there is no cable included with this listing. Has small crack in bottom of keyboard

SpecPicks Verdict

SpecPicks scored IBM Model M 1391401 Spring Buckling Mechanical Keyboard No Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the keyboards & mice category. IBM's keyboards & mice lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for keyboards & mice of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Full Specifications

keys	101
layout	ANSI Full Size
switch_type	Buckling Spring

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IBM Model M 1391401 Spring Buckling Mechanical Keyboard No Cable is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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