1.HP PROCURVE 2910AL-24G-POE J9146A (μη λειτουργικες στο POE 4 πορτες-δουλευουν ομως στο lan- πιθανα επισκευασιμες)  50ευρω

https://support.hpe.com/hpesc/public/docDisplay?docId=c01844319&page=GUID-69795E0A-0D82-4CD6-9D37-B06FE934E7DA.html&docLocale=en_US

2. CISCO SG500-52 πληρως λειτουργικο  50ευρω

rand: Cisco
Model: SG500-52
Type: Managed Switch
PoE: NO
Capacity: 41.67mpps
Switching Capacity: 72Gbps
Total Ports: 48GE + 4 GE (5G Stacking)
Combo Ports: 2 combo GE + 2 1G/5G SFP

https://www.amazon.com/Cisco-SG500-52-K9-52-Port-Gigabit-Stackable/dp/B007UQRPOG

3.CISCO CATALYST 3560-E POE-48  POE 70E

https://www.cisco.com/web/ANZ/cpp/refguide/hview/switch/3560.html

4. 3COM 2948-SFPPLUS 3CBLSG48 πληρως λειτουργικο  50ευρω

https://www.mtmnet.com/3CBLSG48.htm

he 3CBLSG48 3Com Baseline Switch 2948 SFP Plus  is a "smart" voice ready web-managed Layer 2 Gigabit switch. It offers enterprise-class features, customized and priced for small- and mid-sized organizations.

Specifications

• Forty-eight 10/100/1000 ports and 4 Gigabit SFP ports, dual-purposed with 4 of the 10/100/1000 ports (configurable as 10/100/1000 or SFP); front-panel console port for CLI management
• Auto-voice VLAN automatically assigns Voice over IP (VoIP) traffic to a voice-dedicated VLAN, optimizing this delay-sensitive traffic
• VLANs segment the network by grouping users based on their data or traffic requirements, making the best use of available bandwidth
• IEEE 802.1X network access control provides standards-based security combined with local authentication

Benefits

• No need to configure the switch if default settings are acceptable
• Jumbo Frame support for reduced network load
• Easy-to-use browser based tools allows remote detection of cable issues