Technical resources
Datasheets, compatibility, firmware, QA and warranty.
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Product Spec Sheets
OEM datasheets and ETLink test reports.
1,200+ documents →Optical Compatibility Matrix
Verified SFP, DAC and AOC pairings.
SFP · SFP28 · QSFP28 →Firmware Lifecycle
End-of-sale dates and recommended firmware.
EoS / EoL tracker →Quality Assurance Protocol
27-point inspection and burn-in tests.
ISO 9001:2015 →RMA & Warranty Terms
1–3 year advance replacement and RMA steps.
Advance replacement →Pre-sales support
BOM review, optics pairing and stock checks.
Talk to engineering →No resources match your search. Ask an engineer instead.
Popular Spec Sheets
| Part Number | Description | Type | Document |
|---|---|---|---|
| C9300-48P-E | Cisco Catalyst 9300 48-port PoE+, Network Essentials | Datasheet (PDF) | |
| MX204-HW-BASE | Juniper MX204 Universal Routing Platform | Datasheet (PDF) | |
| FG-100F | Fortinet FortiGate 100F Next-Gen Firewall | Datasheet (PDF) | |
| JL659A | HPE Aruba CX 6300M 48G Class 4 PoE | Install Guide (PDF) | |
| N9K-C93180YC-FX | Cisco Nexus 93180YC-FX Spine/Leaf | Datasheet (PDF) |
Optical Compatibility Matrix (Sample)
| Optic | Speed / Reach | Cisco C9300 | Juniper EX4300 | Aruba CX 6300 | Arista 7050X3 |
|---|---|---|---|---|---|
| SFP-10G-SR | 10G · 300m MMF | ✓ Native | ✓ Coded | ✓ Coded | ✓ Coded |
| SFP-10G-LR | 10G · 10km SMF | ✓ Native | ✓ Coded | ✓ Coded | ✓ Coded |
| SFP-25G-SR-S | 25G · 100m MMF | ✓ NM-8x25G | — N/A | ✓ SFP56 port | ✓ Coded |
| QSFP-40G-SR4 | 40G · 150m MMF | ✓ NM-2Q | ✓ Coded | — N/A | ✓ Coded |
| QSFP-100G-LR4 | 100G · 10km SMF | — N/A | — N/A | — N/A | ✓ Coded |
Need a pairing that isn't listed? Send us your platform and optic and we'll confirm within the hour.
system_updateFirmware Lifecycle
- Cisco Catalyst 9300 — IOS-XE 17.9.x (recommended), 17.12.x (extended maintenance).
- Juniper EX4300 — Junos 21.4R3 (JTAC recommended); hardware end-of-sale announced.
- Aruba CX 6300 — AOS-CX 10.13 long-term support train.
- Catalyst 3850 — End-of-support; ETLink spares carry a 1-year warranty.
fact_checkQuality Assurance Protocol
- Serial-number and OEM authenticity verification.
- Cosmetic grading and physical inspection of ports, fans and PSUs.
- Configuration wipe and factory-default restore.
- 24-hour burn-in with port-level traffic and PoE load testing.
- Signed test report shipped with every unit.
workspace_premiumRMA & Warranty Terms
- New / sealed: 3-year ETLink advance replacement.
- Certified refurbished: 1–3 years depending on platform.
- Advance replacement: replacement ships before the faulty unit is returned.
- Open an RMA by emailing rma@etlink.et with your order number and serial.
support_agentPre-sales support
- CCIE / JNCIE engineers review your BOM and topology.
- Optics and transceiver pairing confirmed in our lab.
- Stock checks and a written quote within 60 minutes.
- Based in Addis Ababa, Ethiopia — covering East Africa.
Case Studies
72-hour campus refresh
Twenty Catalyst 9300 switches delivered tested and sealed while the OEM quoted a 16-week lead time.
100G core optics migration
Lab-verified QSFP28 optics across mixed Juniper and Arista platforms with zero link failures at cut-over.
Warehouse Wi-Fi 6 rollout
Ruggedized access layer and 140 APs staged and labelled for six sites in a single week.
Need a datasheet?
Ask engineering — we’ll send the file for any part we stock.