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StarTech Cisco QSFP-40G-SR4 Compatible QSFP+ Module, 850nm (QSFP40GSR4ST)

✅ In stock 📉 Price recently dropped
B
Grade
👍 Good Deal
72.46/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$95.44
Listed $170.14
Save $74.70 44% OFF
Analysis Confidence 55%
🏷️ Price includes Coupon savings
Check Deal at Amazon
Price verified Sep 4, 2026 3:13 PM · Prices & availability subject to change

Is This a Good Price on Amazon?

👍 Good Deal
  • 👍Verdict: Good Deal. Solid value. Price is noticeably below the recent average.
  • 💰The current price is 35% below what this product typically costs — a notable saving over its usual going rate.
  • 🏷️The retail sticker price has been slashed by 44% — a steep markdown from the official listing.
  • 📉A lower price did appear very recently, suggesting the market may revisit that level before long.
  • 📈Pricing has been trending lower — momentum that adds further appeal to this deal.

How We Scored This Deal

Price Competitiveness 28/28
Recent Value 19.11/22
Market Standing 13.85/20
Deal Strength 1.5/20
Momentum 10/10

📝 Product Overview

🏪 Sold by Amazon.com
🚚 Shipping Free Shipping

Product Details

100% CISCO QSFP-40G-SR4 COMPATIBLE QSFP+ TRANSCEIVER: Works with Cisco switches like Firepower, ASR1000, ASR9000, C9300, C3850 and others
TECHNICAL SPECS: 40GBASE-SR4 | 40 Gbps | Multi Mode (MMF) | MPO Connector | 850nm | Digital Diagnostic Monitoring (DDM) | Distances up to 150m (492ft)
TESTED FOR OEM HOST COMPATIBILITY: Hot-swappable in Cisco routers and switches; DDM support reports the transceiver's status to most SNMP network management tools
WORKS WITH MSA COMPLIANT SWITCHES: Also works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules

⚙️ Specifications

Operation Mode
Multimode
Connector Type
Mpo Connector
Brand
StarTech.com
Switch Type
Cisco Switch
Terminal
Solder
Material
Copper
Item dimensions L x W x H
2.8 x 0.7 x 0.5 inches
Circuit Type
1-way
Contact Material
Gold
International Protection Rating
IP65
Number of Positions
1

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