Our server enclosure gets pretty warm under heavy traffic — does this copper SFP run extremely hot like 10G modules?

No, it operates with a very low typical power dissipation of just 1.05W, keeping thermal output remarkably cool compared to 10G optics.

We’re using an SGMII interface on our switches — will the LP-SFP-TMRC module handle full 10/100/1000M auto-negotiation properly over SGMII?

Yes, absolutely! It natively supports SGMII host interfaces, enabling smooth tri-speed (10/100/1000Mbps) auto-negotiation to match whatever copper endpoint you plug in.

Can I connect optical fiber patch cords to this LP-SFP-TMRC module for long-distance building runs?

No, this is a copper SFP transceiver featuring a standard RJ-45 port designed specifically for twisted-pair Cat5 copper cabling up to 100m.

If ambient rack temperatures hover around 50°C, will the transceiver throttle network throughput?

Not at all, as long as case temperatures stay within its specified 0°C to +70°C rating, it maintains full line-rate performance.

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MikroTik S-RJ01 Compatible LINK-PP 10/100/1000BASE-T SFP SGMII Copper 100m RJ-45 Transceiver Module

Name: MikroTik S-RJ01 Compatible LINK-PP 10/100/1000BASE-T SFP SGMII Copper 100m RJ-45 Transceiver Module
Brand: LINK-PP
SKU: 222398
Price: 21.5 USD
Availability: InStock
Rating: 5 (12 reviews)

# 222398

Product: MikroTik S-RJ01 Compatible LINK-PP 10/100/1000BASE-T SFP SGMII Copper 100m RJ-45 Transceiver Module
SKU: 222398
P/N: LP-SFP-TMRC
Price: $ 25
Stock: 613 in Stock
Sold: 3.8K
Product URL: https://www.l-p.com/products/497073.htm

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12 Reviews

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Manufacture: LINK-PP

P/N: LP-SFP-TMRC

Compatible:: Cisco; LINK-PP; Alcatel-Lucent; Arista; Broadcom; Brocade; Ciena; Extreme; FS; Fortinet; Generic; HPE; Intel; Juniper; MikroTik; NVIDIA/Mellanox; Ubiquiti

Compatible P/N:: S-RJ01 | 100m

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MikroTik S-RJ01 Compatible LINK-PP 10/100/1000BASE-T SFP Specifications

Designed as a 10/100/1000BASE-T copper SFP transceiver, the S-RJ01 integrates a hot-pluggable footprint and a compact RJ-45 connector assembly to efficiently bridge reliable 100-meter data links over standard Cat 5 twisted-pair cabling across a 0 to 70°C operating temperature range, all while drawing an exceptionally lean typical power dissipation of just 1.05W.

MikroTik Part Number	S-RJ01	Vendor Name	LINK-PP
Part Status	Active	Form Factor	SFP SGMII
Max. Data Rate	1000Mbps	Max. Cable Distance	100m
Media	Cat 5	Connector	RJ-45
RX_LOS	NO	DOM	Not Supported
Operating Temperature Range	0 to 70°C	Protocols	MSA Compliant, IEEE STD 802.3

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Q: Our server enclosure gets pretty warm under heavy traffic — does this copper SFP run extremely hot like 10G modules? By J***w on 2026-04-05

A: No, it operates with a very low typical power dissipation of just 1.05W, keeping thermal output remarkably cool compared to 10G optics. By admin on 2026-04-06
Q: We’re using an SGMII interface on our switches — will the LP-SFP-TMRC module handle full 10/100/1000M auto-negotiation properly over SGMII? By D***s on 2026-02-02

A: Yes, absolutely! It natively supports SGMII host interfaces, enabling smooth tri-speed (10/100/1000Mbps) auto-negotiation to match whatever copper endpoint you plug in. By admin on 2026-02-03
Q: Can I connect optical fiber patch cords to this LP-SFP-TMRC module for long-distance building runs? By M***g on 2025-12-20

A: No, this is a copper SFP transceiver featuring a standard RJ-45 port designed specifically for twisted-pair Cat5 copper cabling up to 100m. By admin on 2025-12-21
Q: If ambient rack temperatures hover around 50°C, will the transceiver throttle network throughput? By O***s on 2025-07-18

A: Not at all, as long as case temperatures stay within its specified 0°C to +70°C rating, it maintains full line-rate performance. By admin on 2025-07-19

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S***n

Argentina

Verified Purchase

5 .0

2026-04-08

Excellent 10/100/1000BASE-T SFP transceiver. Very stable connection for IP surveillance video streaming across an 85m cable run. No packet drops observed over 30 days of continuous uptime.

93 Helpful vote Comments

A***r

Singapore

Verified Purchase

5 .0

2026-03-12

Fits standard SFP cages, no fitment issues.

47 Helpful vote Comments

L***l

Denmark

Verified Purchase

5 .0

2026-02-27

Works great with Cat5 cabling at 95m across the warehouse floor.

59 Helpful vote Comments

I***n

United Arab Emirates

Verified Purchase

5 .0

2026-01-03

Bought 50 units of the LINK-PP LP-SFP-TMRC copper modules to populate unused SFP ports on our office core switches. We needed extra RJ-45 copper drops for local printers and NAS units. These synced up instantly at 1Gbps with auto-negotiation working smoothly down to 100M on older devices. Very pleased with the build quality!

120 Helpful vote Comments

R***n

New Zealand

Verified Purchase

5 .0

2025-11-17

No DOM support, but we monitor link status via switch CLI anyway. Not a dealbreaker for our use case at all.

106 Helpful vote Comments

Q***r

France

Verified Purchase

5 .0

2025-10-08

Used in a university campus network upgrade to connect legacy security controllers across building blocks. The 100-meter reach over Cat5 works exactly as advertised with zero signal attenuation or frame CRC errors.

113 Helpful vote Comments

H***y

Finland

Verified Purchase

5 .0

2025-09-02

Bulk order arrived fast, all copper modules tested OK.

64 Helpful vote Comments

D***e

Malaysia

Verified Purchase

5 .0

2025-07-22

Thermal management and power budgets are critical in high-density top-of-rack deployments, and this LINK-PP copper SFP transceiver delivers on both fronts. Featuring typical power dissipation of just 1.05 W, it runs noticeably cooler than standard copper SFPs, maintaining optimal operating temperatures well within its 0 to +70°C range. The hot-pluggable design allows fast on-the-fly port reconfigurations without interrupting adjacent links. Additionally, the sturdy metallic casing effectively rejects electromagnetic interference, ensuring pristine signal transmission over full-length copper runs. Highly recommended for production data center racks.

146 Helpful vote Comments

G***a

Russian Federation

Verified Purchase

5 .0

2025-07-07

Low power (~1.05W) helps in dense deployments.

68 Helpful vote Comments

M***h

Indonesia

Verified Purchase

5 .0

2025-06-14

For the price, this SGMII copper SFP beats most generic alternatives we've tested. Using it for 1G NAS uplinks in our lab environment.

82 Helpful vote Comments

W***n

Ireland

Verified Purchase

5 .0

2025-04-21

Swapped out a batch of failing OEM modules with the LP-SFP-TMRC and saw zero packet loss over Cat5. Perfect for our campus network upgrade.

98 Helpful vote Comments

E***y

Israel

Verified Purchase

5 .0

2025-03-14

Evaluating the LINK-PP LP-SFP-TMRC copper module across our core enterprise infrastructure yielded exceptional results. Pushing 1.25G bi-directional data links through the compact RJ-45 connector assembly delivered rock-solid throughput with zero bit errors. The fully metallic enclosure provides outstanding shield grounding, keeping EMI levels remarkably low even in crowded switch environments. The hot-pluggable SFP footprint allowed seamless deployment without disrupting active rack ports, while operating case temperatures remained stable well within the 0 to +70°C commercial threshold. Overall, a highly engineered copper transceiver built to demanding standards.

111 Helpful vote Comments