- VoIP & Phone Systems
The Future of Business VoIP: AI and Emerging Trends
18 Mar, 2026




£73.67 inc. VAT
AI-generated summary
At £61.48 ex‑VAT, this StarTech 1GbE SFP is the sort of “get it working without drama” optic you buy when you already know the link budget is covered. The 70km single‑mode/LC angle makes it a decent fit for longer rural/remote runs or site-to-site fibre where you don’t want to pay big-brand pricing. The fact it’s MSA-style and includes DDM is genuinely useful in day-to-day operations—you can actually monitor optics health rather than guessing when links get flaky.
That said, I’d only buy it if your network gear is compatible with that specific vendor/optics class and you’ve confirmed the transceiver tolerance matches your switch/router model. These mid-priced SFPs can be totally fine, but if you’re in a strict environment (particular optics expectations, zero-tolerance change control, or higher-risk links), I’d rather validate with a quick compatibility check or test unit first. For most standard UK SME/enterprise deployments running single‑mode at distance, it’s good value; if you’re expecting “drop-in perfection” across every switch without checking, that’s where you can get burned.

Qnap
QNAP - SFP+ transceiver module - 10GbE - 10GBase-SR - up to 300 m - 850 nm

STARTECH
StarTech.com Cisco GLC-EX-SMD Compatible SFP Module, 1000BASE-EX, 1GbE Single Mode (SMF) Fiber SMF Optic Transceiver, 1GbE SFP, LC Connector, 40km, 1310nm, DDM, Firepower, ASR920, IE2000 - Lifetime Warranty (GLCEXSMDST) - SFP (mini-GBIC) transceiver module (equivalent to: Cisco GLC-EX-SMD) - 1GbE - 1000Base-EX - LC single-mode - up to 40 km - 1310 nm

STARTECH
StarTech.com 10 pack HPE J4858C Compatible SFP Module, 1000BASE-SX, 1GbE Multi Mode (MMF) Fiber Optic Transceiver, 1 Gigabit Ethernet SFP, LC Connector, 550m, 850nm, DDM, HPE 1400, 1700, 1820 - Lifetime Warranty (J4858C10PKST) - SFP (mini-GBIC) transceiver module (equivalent to: HP J4858C) - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm (pack of 10) - for HPE 1700, 2610, 6120, Switch XL 10/100/1000, HPE Aruba 2530, 2930F 24, 2930F 48, 5406

TP-Link
TP-Link TL-SM321B-2 V1 - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-BX - LC/UPC single-mode - up to 2 km - 1310 (TX) / 1550 (RX) nm