Sorry, that product is no longer available. But here are other great products for you to choose from. 

TRENDnet TU2 H10 - Hub - 10 x USB 2.0 - desktop

Cisco Aironet 3802E - Wireless access point - 802.11ac Wave 2 - 802.11a/b/g/n/ac Wave 2 - Dual Band

Add 4 DIN Rail-mountable RS232 Serial ports to any system through USB

Cisco - SFP+ transceiver module - 10 Gigabit Ethernet - 10GBase-SR - LC/PC multi-mode - up to 984 ft - 850 nm - for Catalyst Switch Module 3012, Switch Module 3110G, Switch Module 3110X; Nexus 5010

Cisco - QSFP+ transceiver module - 40 Gigabit Ethernet - 40GBASE-BiDi - LC multi-mode - up to 492 ft - 832-918 nm - for P/N: N6K-C6004-M12Q, N6K-C6004-M12Q=, N7K-F312FQ-25=, N9K-C9396PX, N9K-X9636PQ

Axiom - SFP (mini-GBIC) transceiver module (equivalent to: Extreme Networks 10051) - Gigabit Ethernet - 1000Base-SX - LC multi-mode

Add four external USB 3.0 ports to your notebook or Ultrabook™ with a slim, portable hub

Axiom - SFP+ transceiver module (equivalent to: Extreme Networks 10302) - 10 Gigabit Ethernet - 10GBase-LR - SFP+ / LC single-mode - up to 6.2 miles - 1310 nm

Cisco Catalyst 4500E Series Universal PoE Line Card - Switch - 48 x 10/100/1000 (PoE) - plug-in module - PoE - for Catalyst 4500E, 4503-E, 4506-E, 4507R+E, 4507R-E, 4510R+E, 4510R-E

Cisco - SFP (mini-GBIC) transceiver module - Gigabit Ethernet - 1000Base-T - RJ-45 - up to 328 ft - for Catalyst 2970G, 3560, 3560E, 3560G, 3560X, 3750

Ubiquiti Unifi UAP-AC-PRO - Wireless access point - 802.11a/b/g/n/ac - Dual Band

Cisco Line Card E-Series - Switch - 12 x 10 Gigabit SFP+ - plug-in module - for Catalyst 4503-E, 4503-E Data Bundle, 4503-E PoE Bundle, 4506-E, 4506-E PoE GE Bundle

Axiom - SFP+ transceiver module (equivalent to: Extreme Networks 10301) - 10 Gigabit Ethernet - 10GBase-SR - SFP+ / LC multi-mode - up to 984 ft - 850 nm

Cisco ISR 4431 - Router - GigE - WAN ports: 4 - rack-mountable

Cisco - XFP transceiver module - 10 Gigabit Ethernet - DWDM - LC single-mode - up to 49.7 miles - OC-192/STM-64

Cisco - SFP (mini-GBIC) transceiver module - Gigabit Ethernet - 1000Base-SX - LC/PC multi-mode - up to 0.6 miles - 850 nm - for Cisco 38XX, 7301, 7301 VAM2+; Catalyst 29XX, 3560, 3750; Catalyst Express 500

Cisco Small Business SG300-28 - Switch - L3 - managed - 26 x 10/100/1000 + 2 x combo Gigabit SFP - desktop

Cisco - Network adapter - SFP/SFP+ to QSFP

Cisco Catalyst 3560CX-12PD-S - Switch - managed - 12 x 10/100/1000 (PoE+) + 2 x combo SFP+ - desktop, rack-mountable, DIN rail mountable, wall-mountable - PoE+ (240 W)

Cisco Catalyst 2960X-24PS-L - Switch - managed - 24 x 10/100/1000 (PoE+) + 4 x Gigabit SFP - desktop, rack-mountable - PoE+ (370 W)

Cisco Fourth-Generation Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module - Expansion module - T1/E1 x 2 - T-1/E-1 - for Cisco 4451-X

Cisco Catalyst 3650-48PS-L - Switch - managed - 48 x 10/100/1000 (PoE+) + 4 x SFP - desktop, rack-mountable - PoE+ (390 W)

NETGEAR ProSafe GS108v4 - Switch - unmanaged - 8 x 10/100/1000 - desktop, wall-mountable

HP 2530-24G-POE+ SWITCH

HPE X240 Direct Attach Cable - Network cable - SFP+ to SFP+ - 4 ft - for HPE 10XXX, 12XXX, 5120, 5500, 59XX, 75XX; FlexFabric 1.92, 11908; Modular Smart Array 1040