SIIG Heavy-Duty Monitor Arm CE-MT3Z11-S1 price history, checked Nov 15, 2026: Good price. $149.06 is 11% below the $168.63 it normally sells for, and the lowest we've seen in 145 days.

SIIG Heavy-Duty Monitor Arm, 17"-57", 59.5 lbs, USB-C 100W, CE-MT3Z11-S1 | Mount a 17"-57" ultrawide monitor up to 59.5 lbs; top C-clamp or grommet mounting and USB-C 100W fit heavy-duty desks.
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Good price
$149.06 is 11% below the $168.63 it normally sells for, and the lowest we've seen in 145 days.
- Now
- $149.06
- Normally
- $168.63
- Lowest in 145 days
- $149.06(Nov 15)
- Highest
- $233.61
Where today's price sits
Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.
Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)
The listing's crossed-out price
Holds upThe listing shows
crossed out: Typical $166.99 −11%
Against its normal price
−11% vs $168.63
Typical $166.99 (−11%) holds up: today's price is 11% below normal.
The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →
Price history
Tracked since Jun 22 · 145 days · 53 price changes
Ahead of Black Friday 2026 (Nov 27), it is already 11% below its normal price of $168.63. SIIG Heavy-Duty Monitor Arm, 17"-57", 59.5 lbs, USB-C 100W… price history, checked Nov 15, 2026: current price $149.06, normal (typical) price $168.63, average $189.95 over 145 days, lowest $149.06 (Nov 15, 2026), highest $233.61 (Jul 29, 2026).
Loading the price chart.
- Price
- Not checked for 3+ days
- Normal $168.63
- 5% or more below normal
How often does it drop below normal?
In the 145 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more twice, typically lasting less than a day. It's below normal right now.
A count of what happened, not a prediction.
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Get this as JSONThe same verdict and prices, from the TrackPin API.
curl https://trackpin.co/api/v1/product/B0D8QWF25X \
-H "x-api-key: $TRACKPIN_API_KEY"const res = await fetch("https://trackpin.co/api/v1/product/B0D8QWF25X", {
headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();
console.log(product.verdict.label, product.price.reference_cents);import os, requests
r = requests.get(
"https://trackpin.co/api/v1/product/B0D8QWF25X",
headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()
print(product["verdict"]["label"], product["price"]["reference_cents"])This is exactly what the API returns for this product. Free keys include 100 requests a day.
Request a key{
"asin": "B0D8QWF25X",
"title": "SIIG Heavy-Duty Monitor Arm, 17\"-57\", 59.5 lbs, USB-C 100W, CE-MT3Z11-S1 | Mount a 17\"-57\" ultrawide monitor up to 59.5 lbs; top C-clamp or grommet mounting and USB-C 100W fit heavy-duty desks.",
"image": "https://m.media-amazon.com/images/I/61twOpFf8vL._AC_SL500_.jpg",
"currency": "USD",
"category": "Home Theater",
"category_label": "TV & Home Theater",
"in_stock": true,
"price": {
"current_cents": 14906,
"reference_cents": 16863,
"discount_pct": 11.61,
"is_deal": true,
"observed_at": 1794710715792,
"changed_at": 1794708094309,
"checked_at": 1794710715792,
"source": "stored"
},
"verdict": {
"label": "good",
"text": "Good price",
"pct_vs_normal": 11.61,
"evidence": "strong",
"stale": false,
"suspect": false,
"steady_since": null,
"sentence": "Good price. $149.06 is 11% below the $168.63 it normally sells for, and the lowest we've seen in 145 days."
},
"listing_claim": {
"label": "Typical:",
"listing_reference_cents": 16699,
"claimed_pct": 11,
"real_pct": 11.61,
"class": "holds_up",
"observed_at": 1794710716030
},
"stats": {
"min_cents": 14906,
"max_cents": 23361,
"avg_cents": 18995,
"history_days": 145,
"price_levels": 210,
"price_changes": 53,
"distinct_prices": 19,
"lowest_at": 1794708094309
},
"history": [
{
"price_cents": 15782,
"from": 1794640730597,
"to": 1794646336612
},
{
"price_cents": 15563,
"from": 1794646686757,
"to": 1794654338656
},
{
"price_cents": 15345,
"from": 1794655515374,
"to": 1794658238444
},
{
"price_cents": 15122,
"from": 1794661818598,
"to": 1794698179836
},
{
"price_cents": 14906,
"from": 1794708094309,
"to": 1794710715792
}
],
"last_seen": 1794710716030
}
// … 205 more steps in the full responseNormal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.