Computer Media and Data Storage Devices

Amazon Warehouse offers Prime members the used SanDisk Extreme Plus 32GB Class 10 UHS-1 Secure Digital High-Capacity Card, model no. SDSDXS-032G-X46, for $23.26 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise shipping costs $8.) That's $32 under the lowest total price we could find for a new one elsewhere. It features up to 60MB/s write speeds and 80MB/s read speeds.

Note that no warranty information is provided.

Newegg offers the refurbished Seagate 3TB Barracuda Serial ATA 6Gb/s Internal Hard Drive, model no. ST3000DM001, for $99.99. Coupon code "EMCPFWC37" cuts it to $79.99. With free shipping, that's $20 under our mention of a new unit from last week and the best price we've ever seen for any 3TB internal hard drive. (It's also $27 under the price of a new one today.) It runs at 7200 rpm and features a 64MB cache. Coupon expires April 19.

Note: A 90-day warranty applies, but it is unclear who backs it.

Western Digital cuts up to 67% off a selection of factory-refurbished external drives and routers. Prices start from $14.99 and shipping starts at $5.99. A 6-month Western Digital warranty applies. A couple of best best bets:

• Refurb WD My Net N900 802.11n Wireless HD Dual-Band Router for $34.99 + $6 s&h (low by $9)
• refurb WD 2TB My Book Essential USB 3.0 External Hard Drive for $69.99 + $8 s&h (low by $22)