On the front, this model has forty-eight 10/100/1000BASE-T RJ45 data ports and four unpopulated 1GBASE-X SFP choices. The manufacturer drawing groups positions 45 through 48 under Shared Ports. Copper and fiber at each shared position are alternatives rather than additional simultaneous links. The rear is a different group: four optical positions numbered 49 through 52, alongside two copper combination choices at 51 and 52. Those two rear copper sockets must not be counted on top of four independent rear optical links. Prepare a link-by-link media schedule across both panels so a fiber replacement or copper uplink order does not silently overstate usable connectivity.
The exact 48t DC port reference allows both half and full duplex on copper ports 1 through 16 and 25 through 40. The other front copper ports, 17 through 24 and 41 through 48, are full-duplex only. This split matters when moving an older endpoint that requires half-duplex communication: an arbitrary spare socket is not equivalent to one in an approved group. Match endpoint requirements and intended shared-fiber positions before copying the configuration. The published groups describe port capability, not the actual negotiated mode or cabling of an offered switch.
The rear optical ports support 1Gb Ethernet, with 10Gb data operation requiring an additional upgrade license. Two optical ports can instead provide stacking, leaving two Ethernet uplinks; 10Gb data on the non-stacking pair still needs the relevant license. The manufacturer also identifies two rear copper combination ports upgradeable from 1Gb to 10Gb Ethernet. Their shared positions 51 and 52 require a deliberate optical-versus-copper choice. Confirm the applicable software rights, supported optics or copper cabling and exact topology for the offered equipment. A 10GE4 suffix describes upgrade-capable hardware and does not establish that a particular used or stocked unit includes every requested entitlement.
The exact rear drawing labels the DC terminal panel −48 V DC / 1.45 A and shows a grounding lug plus a separate redundant power input. These are manufacturer illustration markings, not a measured load or an independently verified rating for the offered unit. The source does not establish the complete input tolerance here. Obtain the actual equipment label, approved power-system requirements and manufacturer installation instructions before energizing it; a compatible redundancy supply and cable are separate quotation items. Published unpackaged dimensions are 4.4 cm high, 44.15 cm wide and 36.86 cm deep, with a 5.08 kg chassis weight. Provide clearance for DC wiring and rear data cables. Local access uses a dedicated Gigabit management port and RJ45 console; the front USB 2.0 function requires ExtremeXOS 22.2 or later. Installed software, environmental suitability, accessories and current support remain unit-specific checks.
The displayed front drawing is official documentation for this exact model, not a photograph of the quoted stock. No stock availability, lifecycle date, full DC input tolerance or software entitlement is inferred from these references.
| Exact manufacturer model | X440-G2-48t-10GE4-DC |
| DC power marking | Official rear diagram: −48 V DC / 1.45 A; actual-unit rating and full input tolerance require verification |
| Front copper access positions | 48 x 10/100/1000BASE-T RJ45 |
| Front fiber alternatives | 4 x 1GBASE-X SFP share copper positions 45–48 |
| Half/full-duplex groups | Front copper ports 1–16 and 25–40 |
| Full-duplex-only groups | Front copper ports 17–24 and 41–48 |
| Rear optical allocation | 4 positions 49–52; 1Gb Ethernet or licensed 10Gb data |
| Rear copper combination choices | 2 sockets share rear positions 51–52; 1Gb upgradeable to 10Gb Ethernet |
| Stacking versus data | Two rear optical ports can serve stacking; two remain Ethernet, with applicable 10Gb license |
| Independent local administration | Dedicated Gigabit management and RJ45 console; USB 2.0 requires ExtremeXOS 22.2 or later |
| DC grounding and redundancy | Grounding lug and separate redundant power input; supply and cabling not inferred as included |
| Unpackaged chassis | 4.4 x 44.15 x 36.86 cm H x W x D; 5.08 kg |
Product Quotation | ![]() | Condition and Packaging | |
Return Eligibility | Returns and Replacement | ||
Shipping Arrangements | ![]() | Warranty Terms |
X440-G2-48t-10GE4-DC is a EXTREME ExtremeSwitching X440-G2 Series product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
For X440-G2-48t-10GE4-DC, the manufacturer specification lists dc power marking as Official rear diagram: −48 V DC / 1.45 A; actual-unit rating and full input tolerance require verification.
Contact YYST Global to confirm availability for X440-G2-48t-10GE4-DC, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
The current reference price for X440-G2-48t-10GE4-DC is US$ 1,700.00. Final pricing can change based on stock, quantity, configuration and delivery destination.
Related products

Extreme X440-G2-24t-10GE4-DC is the DC-input variant with twenty-four Gigabit copper data ports, four shared front Gigabit SFP choices and four rear optical positions. The manufacturer rear drawing labels the power input −48 V DC / 1.0 A. Rear 10Gb data operation requires an additional license, and two rear optical positions can instead serve stacking.

Extreme X440-G2-24x-10GE4 has twenty-four front Gigabit SFP connections, with four RJ45 sockets sharing positions 21–24. Four rear optical ports provide 1Gb Ethernet or licensed 10Gb data operation; two can instead be allocated to stacking. Count shared interfaces once and verify transceivers, license rights and the external redundancy package in the quotation.

Extreme X440-G2-12p-10GE4 supplies twelve Gigabit PoE+ copper ports with a shared 200 W PoE budget. Four optical ports operate at 1Gb by default; 10Gb data operation requires an additional license. Two optical positions can instead serve stacking, so verify the uplink allocation, actual licenses and external redundancy package before ordering.

Extreme X440-G2-24t-GE4 is a 24-port Gigabit copper switch with four unpopulated Gigabit SFP ports and a 0–60°C operating range. Ports 1–16 support half and full duplex; ports 17–24 are full-duplex only. This extended-temperature GE4 configuration does not support SummitStack-V or the family licensed 10GbE uplift.

Extreme X440-G2-24fx-GE4 provides twenty-four fixed 100BASE-FX LC fiber interfaces and four unpopulated 1GBASE-X SFP ports. It is an extended-temperature, non-stacking configuration for 0–60°C operation. Separate the dedicated copper management interface from the fiber data connections, and confirm external power redundancy and software before ordering.

Extreme X440-G2-12t8fx-GE4 combines twelve Gigabit copper ports with eight fixed 100BASE-FX LC fiber connections and four unpopulated Gigabit SFP ports. This extended-temperature model operates at 0–60°C and does not support SummitStack-V. Confirm fiber compatibility, external power accessories and installed software when requesting a quote.