Shop parts

USED X399 sTR4 ATX PRICE

What a used X399 sTR4 ATX is worth today, tracked from verified eBay sold listings so the numbers reflect what people actually paid — not what sellers are asking.

Current used value $282 as of October 6, 2026
30-day average $281 4 readings
90-day average $292 13 readings
30-day change +0.7% from $280
Recorded range $279 – $340 35 price points

A used X399 sTR4 ATX is currently worth about $282, based on verified eBay sold listings through October 6, 2026. The 30-day average is $281 and the 90-day average is $292. That is essentially flat over the last 30 days. We have tracked 35 price points for this part since January 2026, with a recorded range of $279 – $340.

If you are buying a used X399 sTR4 ATX

Anything up to about $307 is a normal market price from a seller who tested the part and will take it back. Around $263 is a good buy. Below that, work out why: untested, no returns, cosmetic damage, or missing accessories are all legitimate reasons for a discount — and all reasons the price should be lower. A price far under the range above, from a seller who won’t answer questions, is the oldest bait there is.

If you are selling one

Listing privately around $263 is realistic if you are willing to photograph it, answer questions, ship it, and absorb the occasional return. Selling it outright — to a shop, or as part of a whole machine — lands nearer $205, because the buyer is taking on the testing, the warranty and the time. Neither number is wrong; they price different amounts of work.

Recorded price history

Every dated observation we hold for the X399 sTR4 ATX, newest first — each one the average of completed eBay sold listings for that week. All 35 readings since January 2026.

Used X399 sTR4 ATX average sold price by date
DateAverage sold priceChange
$282 +1.1%
$279 −0.2%
$279 −1.4%
$283 +1.2%
$280 −2.7%
$288 no change
$288 −0.8%
$290 +0.6%
$288 −6.3%
$308 −1.9%
$314 +0.8%
$311 no change
$311 no change
$311 no change
$311 +3.3%
$301 +3.7%
$291 no change
$291 no change
$291 +0.1%
$290 +2.4%
$284 −4.5%
$297 no change
$297 no change
$297 no change
$297 +2.4%
$290 +0.5%
$288 −2.2%
$295 −0.1%
$295 −1.0%
$298 +3.9%
$287 no change
$287 +1.0%
$284 −1.6%
$289 −15.1%
$340 —

Everything above is computed from 35 dated observations of completed eBay sold listings for the X399 sTR4 ATX, the most recent from October 6, 2026. These are market values for a working, complete unit — not our asking price, and not an offer. How we calculate these prices →

None in stock right now. See what we do have → or check new arrivals.

Other Motherboards prices

All Motherboards market prices →

CHECK OUT MORE MARKET PRICES ON

WEEKLY PRICE REPORT

Weekly Report
Weekly Price Report