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Green circuit board with two SFP+ cages and gold PCIe edge connector

Synology Inc.

Synology Inc. E10G30-F2 dual-port 10GbE SFP+ PCIe 3.0 x8 network card

SKU CH-26SX-G4S9S MPN E10G30-F2

Dual 10 GbE SFP+ ports support link aggregation up to 20 Gb/s with failover and load balancing over PCIe 3.0 x8

Model E10G30-F2

  • Dual 10GbE SFP+ ports deliver high-speed network connectivity
  • Link aggregation combines both ports for up to 20 Gb/s throughput
  • Failover and load balancing maintain network reliability under load
  • CPU offloading support reduces host processor overhead during transfers
  • Compatible with SR, LR transceivers and DAC cables for flexible deployment

Synology dual-port 10GbE SFP+ card

The Synology E10G30-F2 is a dual-port 10GbE SFP+ PCIe 3.0 x8 add-in card built for Synology systems. It targets administrators who need to upgrade NAS or server connectivity to 10 gigabit speeds. The card uses SFP+ cages so transceivers or direct-attach cables can be chosen per link.

PCIe 3.0 x8 interface limits

The card installs in a PCIe 3.0 x8 slot and provides two 10GbE ports. Each port is limited to 10 Gb/s by the SFP+ interface, while the host bus caps total bidirectional throughput at the PCIe 3.0 x8 ceiling. Link aggregation can combine both ports, but the bus remains the hard ceiling for sustained traffic.

20 Gb/s aggregated headroom

When both ports are grouped in a Link Aggregation Group the logical pipe reaches 20 Gb/s, giving headroom for heavy file transfers and virtualisation workloads. Failover keeps services running if one link drops. The card runs out of bandwidth when aggregate demand exceeds the 20 Gb/s aggregate or when the PCIe 3.0 x8 host bus saturates.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $187.99
Pricier than about 66% of the 1,505 comparable items (median $90.99).

Specifications

Size & build
Shipping weight0.20 kg
Package size216 × 122 × 39 mm

Other versions of this model

2 more in the same range

Questions about this item

Should I use one port or both 10GbE ports on the E10G30-F2?

Both 10GbE ports can be combined into a Link Aggregation Group for up to 20 Gb/s throughput, plus port failover and load balancing. A single 10GbE link is also supported if only one connection is needed.

What does the 10GbE figure mean for actual transfer speeds in my Synology system?

Each port delivers 10 Gb/s line rate; with Link Aggregation the combined path reaches 20 Gb/s. CPU offloading and load balancing keep the host efficient so sustained transfers stay close to the wire speed.

What does the PCIe 3.0 x8 slot limit in practice?

The PCIe 3.0 x8 interface provides enough bandwidth for dual 10GbE traffic and the 20 Gb/s aggregated rate without becoming a bottleneck.

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