QSFP+ 40G SR4 optic price tracker

As of Nov 5, 2026, QSFP+ 40G SR4 optic on eBay: used listings start at $7.99 (median $16.57); new from $13.49; refurb from $18.99.

Is $7.99 a good Black Friday price for the QSFP+ 40G SR4 optic? Across the 12 days we checked since Oct 24, its lowest eBay listing was $7.99 and the median listing was $19.93. Today's low is at that low. Black Friday check →

QSFP+ 40G SR4 optic

See the cheapest QSFP+ 40G SR4 optic on eBay (used) — $7.99 →New from $13.49Used from $7.99 Far below the other listings: check the seller, photos and condition before buying.

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Lowest now$7.99
Typical (median)$19.99
7 days▲ 1.0%
30 days—
Live listings142

Buy or wait? Fair price: today's low is within 0% of its 18-day average.

Cheapest QSFP+ 40G SR4 optic listings right now

ListingConditionPrice + ship
Cisco QSFP-40G-SR4-S Transciever, 1 Year Warranty Buy It Now offers Used $7.99 free ship View on eBay
Finisar FTL410QE2C-G1 QSFP-40G-SR4 40GBASE-SR4 40G QSFP+ MPO Optical Transceiver Buy It Now offers Used $7.99 free ship View on eBay
Juniper Compatible QFX-QSFP-40G-SR4-NFS 40Gbase SR4 850nm 150m QSFP Transceiver Buy It Now offers Used $7.99 free ship View on eBay
Juniper Networks GENUINE, QFX-QSFP-40G-SR4 QSFP+ 40 Gigabit **1 YEAR WARRANTY** Buy It Now offers Used $8.50 free ship View on eBay
Genuine Cisco QSFP-40G-SR4 40G SR Transceiver Module Buy It Now Used $8.50 free ship View on eBay
40G-QSFP-SR4 40G-QSFP-SR4-PRO PROLINE 40Gb QSFP Buy It Now offers Used $8.58 View on eBay
Finisar Original FTL410QE4C QSFP- 40G-SR4 QSFP+ Multi Mode Transceiver Buy It Now offers Used $8.95 free ship View on eBay
Finisar FTL410QE2C QSFP-40G-SR4 Optical Transceiver Module Used Buy It Now offers Used $8.99 free ship View on eBay
Cisco Original QSFP-40G-SR4-S 40GBase SR4-S Optical Transceiver Buy It Now Used $8.99 free ship View on eBay
Finisar FTL410QE2C QSFP-40G-SR4 Buy It Now Used $9.00 free ship View on eBay
Juniper QFX-QSFP-40G-SR4 QSFP+ 40 Gigabit, 1 Year Warranty Buy It Now offers Used $9.75 free ship View on eBay
Cisco QSFP-40G-SR4 40GBase-SR4 QSFP+, 1 Year Warranty Buy It Now offers Used $9.75 free ship View on eBay
CISCO QSFP-40G-SR4-S 40GBASE-SR4-S 850 nm MMF QSFP Module Cisco 10-3090-02 Buy It Now Used $9.89 free ship View on eBay
QSFP-40G-SR4-S CISCO 40GBASE-SR4-S 850 nm MMF QSFP Module Buy It Now offers Used $9.90 free ship View on eBay
Genuine HP JG325B X140 40G QSFP+ MPO SR4 Transceiver FTL410QE2C-HZ Buy It Now offers Used $9.90 free ship View on eBay
Cisco Original QSFP-40G-SR4-S 40GBase SR4-S Optical Transceiver 100+ in stock Buy It Now offers Used $9.95 free ship View on eBay
Genuine Cisco QSFP-40G-SR4 QSFP TRANSCEIVER MODULE Buy It Now offers Used $10.49 free ship View on eBay
FINISAR FTL410QE4C QSFP- 40G-SR4 QSFP+ Multi Mode Transceiver Module Buy It Now offers Used $11.95 free ship View on eBay
JG325B HPE X140 40G QSFP+ MPO SR4 Transceiver **New Other** Buy It Now offers Open box $11.99 free ship View on eBay
Precision QSFP-SR4-AJ QSFP 40G SR4 MMF 850nm TR-QQ85X-NPT Transceiver Buy It Now offers Used $11.99 free ship View on eBay
FS QSFP-SR4-40G 40G QSFP+ 850NM 150M TRANCIEVER Buy It Now offers Used $12.00 free ship View on eBay
Cisco 40G SR QSFP+ Transceiver Optic Module QSFP-40G-SR4 10-2672-03 Buy It Now offers Used $12.00 free ship View on eBay
Cisco QSFP-40G-SR4-S Transceiver 40GBASE-SR4-S MMF QSFP Module 10-3090-02 Buy It Now offers Used $12.00 free ship View on eBay
FS QSFP-SR4-40G 40GBASE Duplex LC 150m MMF QSFP+ Transceiver Module Optic Buy It Now offers Used $12.99 free ship View on eBay
X 5 Finisar FTL410QE2C-G1 QSFP-40G-SR4 40GBASE-SR4 40G QSFP+ MPO Transceiver Buy It Now offers Used $12.99 free ship View on eBay
Finisar FTL410QE2C 40BASE-SR4 150m Gen2 QSFP+ transceiver QSFP-40G-SR4 Buy It Now offers Used $13.11 sale: was $19.00, −31% free ship View on eBay
HPE X140 40G QSFP+ MPO SR4 Transceiver JG325B **New Open Box** Buy It Now offers New $13.49 free ship View on eBay
Brocade 40GE E40G-QSFP-SR4 QSFP 100m Transceiver Module 57-1000128-01 Buy It Now Used $13.58 free ship View on eBay
Genuine Cisco QSFP-40G-SR4 40G-Base QSFP+ Transceiver Module Buy It Now offers Used $13.68 View on eBay
Finisar FTL410QE2C-E5 QSFP-40G-SR4 EMC 019-078-046 Optical Tranciever Buy It Now offers Used $13.80 sale: was $20.00, −31% free ship View on eBay

Recent auctions: last bid seen

The last bid we saw before each auction ended, shipping included. This is not a confirmed sale price: bids in the final minutes are missed, and an auction can end unsold or below a reserve.

EndedLast bid seenBidsSeen before end
2026-11-01$3,40908h

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Where today's prices sit

27 listings $8–$1438 listings $14–$1920 listings $19–$2512 listings $25–$304 listings $30–$366 listings $36–$417 listings $41–$475 listings $47–$534 listings $53–$580 listings $58–$643 listings $64–$691 listing $69–$75$8$75+

142 live listings by price (item + shipping). The highlighted bar is the cheapest band.

Price history

$21$7.592026-10-192026-11-05

typical asking price lowest asking price

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Market read

Of 142 Buy It Now listings, 88 used (from $7.99), 51 new (from $13.49), 3 refurb (from $18.99). The cheapest used copy is 41% below the cheapest new one. 76% ship free; the rest add $6.74 shipping at the median. The middle half of asking prices runs $14.99 to $41.40, so anything under $14.99 is in the cheapest quarter. Lowest we have recorded since 2026-10-19: $7.99 on 2026-10-19 — today matches it.

Asking prices of US eBay listings including shipping, as of 2026-11-05 (checked twice a day); we earn a commission on purchases through these links; parts, broken units and accessories are filtered out. How we price.

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