- Cloud Networking
Cisco Meraki MX vs Traditional Firewalls: A Comparison
11 Mar, 2026

£34.34 inc. VAT
AI-generated summary
For £28.62 ex-VAT, the HP Poly APN-91 electronic hookswitch is one of those “small part, big hassle avoided” purchases. If you’re trying to get a Poly desk phone / headset setup to behave correctly with a specific base or call-control workflow, this kind of adapter can save you from chasing weird ring/answer behaviour, compatibility quirks, or messy workarounds that cost more time than the part itself. In practice, it’s ideal for IT resellers supporting office telephony installs where phones have to integrate cleanly and you want a dependable, supported path.
That said, I wouldn’t buy it just because it’s cheap or broadly “hookswitch” related. These parts can be quite model-/system-dependent, and if you pick the wrong variant you’ll end up with an expensive accessory that doesn’t solve the real issue. So the “why not” is simple: only purchase if you’ve confirmed it matches the exact Poly device/base you’re servicing and the environment you’re deploying into. If you’ve got that confirmation, it’s good value; if you’re guessing, it’s a classic spend that turns into returns and site rework.

Lenovo
Lenovo - Network cable - QSFP+ to QSFP+ - 5 m - CRU - for System Networking RackSwitch G8264, ThinkAgile HX2320 Appliance, ThinkSystem NE2580

Lenovo
Lenovo - Network cable - 3 m - CAT 6 - green - for ThinkSystem DE4000H Hybrid, SR250 V2, SR630 V2, SR650 V2, ST250 V2, ST50 V2, ST650 V2

STARTECH
StarTech.com Cisco SFP-H10GB-CU3M Compatible 3m 10G SFP+ to SFP+ Direct Attach Cable Twinax, 10GbE SFP+ Copper DAC 10 Gbps Low Power Passive Transceiver Module DAC, Cisco Firepower, ASR920 - Lifetime Warranty (SFPCMM3M) - Direct attach cable - SFP+ to SFP+ - 3 m - twinaxial - for P/N: ET10GSFP, PEX10000SFPI, PEX10GSFP, PEX10GSFP4I, PEX20000SFPI

STARTECH
StarTech.com Cisco SFP-H10GB-CU6M Compatible 6m 10G SFP+ to SFP+ DAC Twinax, 10GbE SFP+ Copper DAC 10Gbps/10GE Low Power Passive SFP+ Transceiver Module DAC Cable, Cisco Firepower ASR9000 - Lifetime Warranty (SFPH10GBCU6M) - 10GBase direct attach cable - SFP+ latched to SFP+ latched - 6 m - twinaxial - SFF-8431/SFF-8432 - passive - black