Elfcam Network Transceivers under $75

4 Elfcam network transceivers under $75. Prices run $20 to $59.

Elfcam

QSFP28, 100 Speed, Multimode fiber, 850 nm

+100 Gbps speed in QSFP28 form factor

+850 nm wavelength for multimode fiber

+MTP/MPO-12 connector for parallel optics

−Multimode reach limited to 100 m

$59.99

as of 11/04/2026 10:05 PST - Details

Elfcam

SFP+, 10 Speed, Single-mode fiber, 2 In the box

+10 Gbps speed in SFP+ form factor

+20 km reach over single-mode fiber

+Sold as a pair of two modules

−Requires a matching BiDi module at the far end

$59.99

as of 11/04/2026 10:09 PST - Details

Elfcam

SFP, 1 Speed, RJ45 copper, RJ45

+Supports 10/100/1000 Mbps copper speeds

+RJ45 port for standard Ethernet cables

+Sold as a lot of two modules

−Copper reach limited to 100 m

$19.99

as of 11/04/2026 06:07 PST - Details

Elfcam

SFP+, 10 Speed, RJ45 copper, RJ45

+10Gb SFP+ speed with RJ45 copper port

+Plugs into standard SFP+ cages

+30m reach suits short copper runs

−Limited to 30m reach for short-distance use

$36.99

as of 11/04/2026 06:07 PST - Details

Compare specs

Form factor	Speed	Medium	Connector	Spec score	Price
QSFP28	100	Multimode fiber		n/a	$59.99 as of 11/04/2026 10:05 PST - Details
SFP+	10	Single-mode fiber	SC	n/a	$59.99 as of 11/04/2026 10:09 PST - Details
SFP	1	RJ45 copper	RJ45	n/a	$19.99 as of 11/04/2026 06:07 PST - Details
SFP+	10	RJ45 copper	RJ45	n/a	$36.99 as of 11/04/2026 06:07 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.