Publishes both loss figures, and the highest return loss quoted here
HB-DIGITAL 1 m duplex OS2 LC/APC to LC/APC, 9/125 µm, LSZH
The cheapest lead on this shelf and one of the best documented, with a sub-grade named, both loss figures printed and a connector standard cited by number — and no word at all about which way its two strands are arranged.
Specifications
- Fibre type
- Single-mode, 9/125 µm — stated in the title and in the first bullet, which calls it a high-grade single-mode fibre patch cable
- Fibre grade
- OS2, with the sub-grade G657.A2 named in brackets in the first bullet. Three of the seven leads on this shelf qualify their grade with a G.65x designation and this is one of them
- Connector types at each end
- LC/APC at both ends — stated in the title and in the first bullet, which names the duplex connectors explicitly
- Simplex or duplex
- Duplex — stated in the title, and described in the third bullet as two 2.0 mm fibre lines in a stable parallel arrangement, quoted as 2 × 2.0 mm, said to suit applications with double or redundant connections
- Polarity arrangement
- Not published on the listing — nothing says whether the pair arrives crossed, and no A or B marking is described anywhere. The third bullet describes the parallel construction and stops there
- Length
- 1 m — stated in the title. Three of the seven leads on this shelf are 1 m and this is one of them
- Jacket rating
- LSZH — stated in the title and in the fourth bullet, which spells out Low Smoke Zero Halogen and calls the material flame-retardant and low-smoke, suited to interiors, public buildings and technical installations
- Polish type
- APC — carried by the LC/APC designation at both ends. The first bullet quotes an insertion loss of 0.3 dB or less and a return loss of 60 dB or better, the highest return loss figure published on this shelf
- Armouring
- Not published on the listing — no armour, no steel braid and no rodent protection is named. The fifth bullet offers manufacture to IEC 61754-20, testing of every lead for insertion and return loss, and an operating range of -40 °C to +85 °C instead
- Amazon reference
- B0G1YV54TB (same reference on 4 Amazon marketplaces)
- EAN
- 4063328061418
On the listing
A duplex single-mode fibre patch cable of 1 m, OS2 with the sub-grade G657.A2 named, 9/125 µm, with LC/APC duplex connectors at both ends; a stated suitability for transmission rates of 1, 10, 40 and 100 Gbit/s; an insertion loss of 0.3 dB or less and a return loss of 60 dB or better; a duplex construction of two 2.0 mm lines in parallel; an LSZH jacket described as halogen-free, flame-retardant and low-smoke; manufacture to IEC 61754-20 with every lead tested for insertion and return loss; an operating range of -40 °C to +85 °C; and a compatibility line naming Telekom, Vodafone, 1&1, FRITZ!Box and TP-Link equipment for FTTH, FTTB and FTTx installations.
OS2, G657.A2 and nine microns of core
Most leads on this shelf write a grade and stop. This one writes the grade and then names the fibre specification underneath it: G657.A2, in brackets, in the first bullet.
That designation is about bending. It is the reason a lead can be looped behind a router without the loss climbing, and it is a property of the glass rather than of the connectors or the jacket. Three of the seven leads here name a G.65x designation of some kind; the other four leave the grade as two characters and let the buyer assume the rest.
The core and cladding are given as 9/125 µm, which is the dimension that separates this from the multimode leads two positions along.
Insertion loss and return loss, both printed
Two figures, and they measure opposite directions of the same problem.
Insertion loss is what the connector swallows on the way through: 0.3 dB or less here. Return loss is what the connector throws back at the transmitter: 60 dB or better, which is the strongest such claim in this hub.
The second figure is the one an angled polish is for. Grinding the ferrule face at an angle means a reflection leaves the core sideways instead of travelling back down the fibre into the transceiver that produced it, and the number quantifies how well that works. Three leads on this shelf publish neither figure at all, which leaves their connectors described by adjectives.
Duplex on a job the rest of this shelf does with one strand
The second bullet points this lead at the connection between a fibre termination point and an ONT. Four of the seven leads here are simplex and three of those four are sold for the very same connection.
So the duplex construction is a decision the buyer has to make rather than a feature to be pleased about. Two 2.0 mm lines in parallel, per the third bullet, meant for double or redundant connections. If the ONT takes one strand, the second is a passenger for the length of the run.
Where it pays is in a cabinet, where a duplex pair replaces two leads and one cable tie, and where the pair being physically joined stops one half wandering off behind a switch.
Before ordering
Look at the socket on the equipment at both ends and count the strands it wants, because a duplex lead on a single-strand job is a metre of spare glass. Then check the connector: LC/APC is the pairing here, and an ONT terminated in anything else needs a different lead rather than an adapter. And note that polarity is unwritten, so if the pair does need to cross, that is a question for the seller.
Availability
Priced at roughly 7 € on the German Amazon store the day this page was checked.
The French Amazon price runs past 1.6× the cheapest store. A gap that size normally marks a reshipper and not a seller in the country, so that listing stays out of the range above.
In the Italian and Spanish Amazon catalogues with no live offer against it: the reference exists, nobody is filling it.
The American and British Amazon stores returned nothing at all, so the buy button there opens a search in that country rather than a page that would not load.
Every figure in this section is what Keepa held on the day this page was last updated. Stock and prices move without warning.
Prices quoted in this text were read on 10 September 2026. The live price is at the top of the page.
