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Add Cisco Desk Phone 9841 (DP-9841-K9) — New, Entry-Level Gigabit SIP Desk Phone to the cart
Add Cisco Desk Phone 9851 DP-9851-K9 — New, Color Display Enterprise SIP Desk Phone to the cart
Add Cisco Desk Phone 9861 (DP-9861-K9) — New, Wi-Fi & Bluetooth VoIP Phone to the cart
Add Cisco GLC-LH-SMD, single-mode 1000BASE-LX/LH SFP Transceiver, Cisco Original, Refurbished to the cart
Add Cisco GLC-SX-MMD 1000BASE-SX SFP Transceiver, New to the cart
Add Cisco GLC-SX-MMD 1000BASE-SX SFP Transceiver, Refurbished to the cart
Add Cisco GLC-TE 1000BASE-T SFP Transceiver, New to the cart
Add Cisco GLC-TE 1000BASE-T SFP Transceiver, Refurbished to the cart
Add Cisco HWIC-8A 8-Port Async Serial WAN Interface Card - Refurbished | Resilient Tec to the cart
Add Cisco IP Phone 8841, CP-8841-K9 — New, Standard Enterprise IP Phone to the cart
Add Cisco IP Phone 8851, CP-8851-K9 — New, Bluetooth Enterprise IP Phone to the cart
Add Cisco IP Phone 8861 CP-8861-K9 — New, Wi-Fi & Bluetooth Enterprise IP Phone to the cart
Add Cisco ISR4321/K9 4321 Integrated Services Router 2x Gigabit 50-100Mbps 2 NIM Slots - Refurbished to the cart
Add Cisco NIM-16A - 16-Port Asynchronous Serial Network Interface Module, Refurbished to the cart
Add Cisco PWR-C1-1100WAC-P 1100W AC Platinum-Rated Hot-Swappable Power Supply for Catalyst 9300 Series Switches, New to the cart
Add Cisco PWR-C1-1100WAC-P 1100W AC Platinum-Rated Hot-Swappable Power Supply for Catalyst 9300 Series Switches, Refurbished to the cart
Add Cisco PWR-C5-1KWAC 1000W AC Config 5 Hot-Swappable Power Supply for Catalyst 9200 Series Switches, New to the cart
Add Cisco PWR-C5-1KWAC 1000W AC Config 5 Hot-Swappable Power Supply for Catalyst 9200 Series Switches, Refurbished to the cart
Add Cisco PWR-C6-600WAC 600W AC Config 6 Hot-Swappable Power Supply for Catalyst 9200 Series Switches, Refurbished to the cart
Add Cisco QSFP-100G-CU1M Compatible 100G QSFP28 Passive DAC Twinax Cable - 1m to the cart
Add Cisco QSFP-100G-CWDM4-S Compatible, 100G QSFP28 CWDM4 Transceiver — 2km SMF, 1271–1331nm, Duplex LC to the cart
Add Cisco QSFP-100G-LR4-S Compatible, 100G QSFP28 LR4 Transceiver — 10km SMF, LAN-WDM ~1310nm, Duplex LC to the cart
Add Cisco QSFP-100G-SR4-S Compatible, 100G QSFP28 SR4 Transceiver — 100m OM4 MMF, 850nm, MPO-12 to the cart
Add Cisco QSFP-40G-SR4 40GBASE-SR4 QSFP+ Transceiver, New to the cart
Add Cisco QSFP-40G-SR4 40GBASE-SR4 QSFP+ Transceiver, Refurbished to the cart
Add Cisco QSFP-H40G-CU1M 40GBASE-CR4 QSFP+ Direct-Attach Cable, New to the cart
Add Cisco QSFP-H40G-CU1M 40GBASE-CR4 QSFP+ Direct-Attach Cable, Refurbished to the cart
Add Cisco SFP-10G-T-X 10GBASE-T SFP+ Transceiver, New to the cart
Add Cisco SFP-10G-T-X 10GBASE-T SFP+ Transceiver, New Compatible to the cart
Add Cisco SFP-10G-T-X 10GBASE-T SFP+ Transceiver, Refurbished to the cart
Add Cisco SFP-H10GB-CU1M 10GBASE-CU SFP+ Direct-Attach Cable, New to the cart
Add Cisco SFP-H10GB-CU1M 10GBASE-CU SFP+ Direct-Attach Cable, Refurbished to the cart
Add Cisco SFP-H10GB-CU3M 10GBASE-CU SFP+ Direct-Attach Cable, New to the cart
Add Cisco SFP-H10GB-CU3M 10GBASE-CU SFP+ Direct-Attach Cable, Refurbished to the cart
Add Cisco UCS-HDD1TI2F212 1TB SAS 7.2K RPM 3.5" LFF Hot-Swap Hard Drive – Enterprise Storage for UCS Servers to the cart
Add Cyber Power APCRBC152-CP UPS Replacement Battery Cartridge, New to the cart
Add CyberPower APCRBC141-CP UPS Replacement Battery Cartridge, New to the cart
Add CyberPower PDU15M2F10R Metered PDU, 15A 120V, 1U 12-Outlet NEMA 5-15R, New to the cart
Add CyberPower PDU15M2F12R Metered PDU, 15A 120V, 1U 14-Outlet NEMA 5-15R, New to the cart
Add CyberPower PDU41001 Switched PDU, 15A 120V, 8-Outlet NEMA 5-15R, 3-Year Warranty, New to the cart
Add CyberPower PDU41002 Switched PDU, 20A 120V, 8-Outlet NEMA 5-20R, 3-Year Warranty, New to the cart
Add CyberPower PDU44001 Switched ATS PDU, 10-Outlet NEMA 5-15R, Dual 5-15P, New to the cart
Add DAC-Q28-100G-1M Dell Compatible, 100G QSFP28 Passive DAC Cable - 1m to the cart
Add DAC-Q28-100G-3M Dell Compatible, 100G QSFP28 Passive DAC Cable - 3m to the cart
Add Dell 575TK NVIDIA A100 80GB PCIe GPU, Refurbished to the cart
Add Dell PowerEdge R640 8SFF 1, Refurbished to the cart
Add Dell PowerEdge R640 8SFF 2, Refurbished to the cart
Add Dell PowerEdge R640 8SFF 3, Refurbished to the cart
Add Dell PowerEdge R740XD, Refurbished to the cart
Add Dell R7525 AI Ready with 2 x Nvidia GPU A100 to the cart

From the blog

The Dirty Connector Problem: MPO Inspection and Cleaning
The Dirty Connector Problem: MPO Inspection and Cleaning

Contamination is the leading cause of fiber link failure, and one dirty position on an MPO ferrule presents as a...

My Optic Won't Link: Reading DOM and Working the Optical Loss Budget
My Optic Won't Link: Reading DOM and Working the Optical Loss Budget

Before replacing a transceiver, read its DOM. Transmit and receive power split a dead link into three buckets in under...

What Can You Actually Run on a 48GB NVIDIA A40? Measured Model Sizes and Tokens Per Second (2026)

One A40 48GB runs 27–34B models at 23–29 tokens/sec, fits a 70B at Q4 at 12–13.5 tokens/sec, and serves 1,705...

The Dirty Connector Problem: MPO Inspection and Cleaning
The Dirty Connector Problem: MPO Inspection and Cleaning

Contamination is the leading cause of fiber link failure, and one dirty position on an MPO ferrule presents as a failing module. The inspect-clean-inspect discipline, the right tools, what never to do, and the symptom patterns that should send you to the scope instead of the spares shelf.

My Optic Won't Link: Reading DOM and Working the Optical Loss Budget
My Optic Won't Link: Reading DOM and Working the Optical Loss Budget

Before replacing a transceiver, read its DOM. Transmit and receive power split a dead link into three buckets in under a minute. Per-lane readings, the loss budget arithmetic, and the failures DOM is blind to.

What Can You Actually Run on a 48GB NVIDIA A40? Measured Model Sizes and Tokens Per Second (2026)

One A40 48GB runs 27–34B models at 23–29 tokens/sec, fits a 70B at Q4 at 12–13.5 tokens/sec, and serves 1,705 tokens/sec of aggregate output on an 8B model at 100 concurrent requests. The measured numbers, the KV cache math behind the 72B cliff, and the three things an Ampere card cannot do.

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